Mark: Hi, it's Mark from Top Local. We're here with Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver's best auto service experience. 22 time winners of Best Auto Repair in Vancouver as voted by their customers. We're talking Jeeps. How are you doing Bernie?
Bernie: Doing well.
Mark: So a 2015 Jeep Grand Cherokee. That had a limited slip differential problem. What was going on with this vehicle?
Bernie: Yeah, so the owner's concern was a warning light on the dash and said four wheel drive system fault. And there was a couple of other warning lights that would come on at the same time, ABS and then a couple of other things. So that was the primary concern.
Mark: So how did you diagnose this?
Bernie: Yeah. We road test the vehicle, it felt fine. Plugged in our diagnostic scan tool and did a full system scan. This is sort of the best way. I mean, we could of gone right into the four wheel drive module, but the best thing to do on a modern vehicle, especially 2015, which is pretty advanced electronics, is to do a full system scan. So that scans every module in the vehicle computer from the engine to the power windows, whatever the vehicle equipped with, it scans the whole system and it reports on any trouble codes found. And so, we found trouble codes in a variety of different modules, ABS traction control, electronic limited slip differential, which is kind of where the area of concern we found lied.
So from there, you know, once we record all the codes and we clear them, drive it and see which come back. And that kind of gives us an idea. Because one code will often set a code in another module. So it's important to decipher which item is actually causing the fault.
So from being a little more driving diagnosis, we found that the fault clearly it was the electronic limited slip differential motor. There was a circuit problem with that motor.
Mark: So were there any more tests that you needed to do from there?
Bernie: Yeah. Well, now that we'd verified where the area of the problem was coming from, then we were able to test the motor, the circuits, make sure that see what component was bad.
And of course we consult the manufacturer's information when we need to, and their system is pretty simple. It's clear the code. Doesn't return. Is the wiring hooked up. If it returns the motors defective. So that's kind of their system. And in fact, this time it did work fine, but so often in automotive repair, I've seen it, you know, install known good part.
Well, sometimes the known good parts, a thousand bucks. So, you know, I don't personally feel that good about going, you know, telling someone, Hey, it's going to be a thousand dollars plus labor. It might not work. It's a good way to lose customers fast, but we did our tests and the motor turned out to be the problem.
Mark: So how difficult was it to replace this motor?
Bernie: It's pretty simple. This motor bolts onto the side of the rear differential and pretty straightforward replacement. Let's look at some pictures.
So there's our Jeep 2015 Grand Cherokee, fully loaded. These vehicles, they just get fancier every year, pretty cool vehicle. Good off-road ride. So let's have a look, there's the motor. Electrical connector here. There's a little drive gear here that operates the innards of the differential. And we'll just look at a few more views of the motor, but essentially there's several bolts, and this bolts right into this side of the differential case. No messy fluid to change, it's pretty straightforward and easy. Okay views. This is the gear that meshes inside the motor. You can see the mounting holes here for the bolts.
I found this stuff kind of interesting. The motor, it says if drop scrap, Do not open or modify. And then I kind of looked at it a little more closely and noticed that the whole motor is riveted together. There's not a bolt you can take apart to look at it. So this is a very integrated unit with sensors and obviously sensitive, like if drop, scrap. It's funny, interesting kind of English.
Wiring. So this is, you know, the electronics are complicated on these things, and this is like a, again, I'll just show these sort of things so you can kind of get an appreciation for the level of complexity that a modern vehicle has. You know, this is basically the motor here and differential clutch hall sensor, that's basically a position sensor. So the computer knows what position the motor's in, whether it's doing its thing and any of these things that don't quite work properly will cause the motor to malfunction and the whole system to go down. So again, clutch motor, there's a lot to this. And this is just the the rear differential. There's the electrical connector. And I think that kind of covers our picture show.
Mark: So, did you have to reprogram anything to get this motor to work properly?
Bernie: It's a great question, because on a lot of modern vehicles, the moment you change a part, the vehicle needs to be reprogrammed to accept the module and what it is. And in this case, it wasn't. So it made first kind of simple plug and play operation. But yes, there are a lot of vehicles where if you put a module and all of a sudden there'll just be an error code and nothing works and all systems down and you have to reprogram it. But fortunately for this, it's easy. And this is a bit of research we always do before we replace a part on a vehicle just to check with the manufacturer to make sure that it doesn't need reprogramming. So that way as a customer, you know what to expect when the job's done.
Mark: So I've replaced a couple of differentials in vehicles over the years. I've never had to put any kind of electronic stuff in there. Why are they using electronic controls in a deferential and what does it actually do?
Bernie: Well again control is the word and with electronics, as we well know, you can do things fast. You know, a lot of the switch time in these things is a hundred milliseconds. So that's pretty quick, you know, and so a computer senses a wheel needs to grip the road a little better. It'll just send that signal right away. And then the differential can make the adjustments, whereas on a normal limited slip differential, it's a bit crude. I mean, it works great, but you're not going to get necessarily the very best traction you could, unless you can actually send the torque to the wheel that you need to.
So this gives that capability to be able to do that. What's inside of this thing. I actually tried to do a little research and I actually don't know exactly how it works because through my repair information, they don't show, Chrysler hasn't released anything on what the insides are like on this. So I have to get a unit and take it apart and see at some point, and I know that'll happen at some point in time.
I looked at an Eaton video, which this may be an Eaton unit I'm not sure but they have a video on how the system works. It's kind of interesting to watch.
Anyways, you know, the clutches are basically electronically controlled and it's basically speed and operation and control and integration with the rest of the vehicle. Perhaps more torque needs to go to the front and less on the rear, you know, being an all wheel drive vehicle so this is what the vehicle can do. Much more control.
Mark: So 2015, it seems pretty new for replacement like this. How reliable are 2015 Jeep Grand Cherokees?
Bernie: Well, you know, I consider Jeeps to be a vehicle in the fair reliability department. There's a lot of things that tend to go wrong on them. They are, in all honesty, they are are complex vehicles. There's a lot more to them than most, but this vehicle only had 42,000 kilometres. So really not a lot of mileage. And in my opinion, this motor should have lasted a whole lot longer. So I think, you know, if you own a Jeep, I guess the easiest thing I can say is just expect you're going to spend a little more money to do repairs than you would a few on some other equivalent vehicles.
Mark: And does that accelerate a little bit, if you're doing a lot more off-road stuff, even though that's rarer and rarer for Jeeps these days.
Bernie: Yeah, well, there's certainly the risk of you go off road that you might bang or smash something, but it may actually in some way actually enhanced the life of some of the components, because they're actually meant to be used in these ways.
So sometimes lack of use can cause problems just as much as overuse. But I would say, yeah, if you're going out in the bush it might well do it. Like you said, a lot of these are city four by four. They don't really get used for what they could be used for.
Mark: So there you go. If you're city four by four, or off-road four by four needs some service in Vancouver. The guys to see your Pawlik Automotive in Vancouver, British Columbia, Canada. You can reach them at (604) 327-7112 to book your appointment, you have to call the book ahead. They are busy, always a line up to get in there. So got a call and check. Pawlikautomotive.com is the website. Pawlik Auto Repair is the YouTube channel. Hundreds of videos of all makes and models and types of repairs on there over the last seven years. And of course, thanks so much for listening, watching the podcast. We appreciate it. Leave us a review. Thanks Bernie.
Bernie: Thanks Mark. Thanks for watching.
Mark: Hi, it's Mark from Top Local. We're here with Bernie Pawlik, Pawlik Automotive in Vancouver, 21 time winners of best auto repair in Vancouver, and of course, generally acknowledged by us at least, Vancouver's best auto service experience. And we're talking Jeeps. How are you doing Bernie?
Bernie: Doing very well. Love talking about Jeeps.
Mark: 2007 Jeep Cherokee, Grand Cherokee, a three litre diesel. Our favourite, there was a fuel tank problem. What was going on with the Jeep?
Bernie: Yeah, so this vehicle came to our shop. It had some fuel leak issues. The first thing we noted coming out from under the hood, there was some pretty bad fuel injector leaks, to the point, where we basically need to replace all six fuel injectors. So they're physically leaking. They're also leaking combustion gas out of the engine. So it was our first repair. And that's a pretty major repair on one of these vehicles. So we replaced all the fuel injectors, cleaned off the engine, cleaned underneath the vehicle, road, tested it, and then we've also found that the gas tank was leaking, which was a bit of a surprise, first time we'd seen something like that on one of these vehicles.
Mark: Are leaking fuel tanks a common issue on Grand Cherokees?
Bernie: No, they're not. So the interesting thing is on the diesel version of the Grand Cherokee, the gas, the fuel tank is metal and the other versions, the gasoline powered, they're a plastic tank. This is a difficult tank to find too, by the way, because it's a kind of a rare model, a sort of a half Mercedes, half Jeep kind of combination.
So the tank was a little interesting to source. But yeah, not a common issue, but I can see why, how, you know, based on this issue with what we found with this vehicle. And as you'll see with some further pictures and as we discuss it, how this, you know, could unfold on a lot more vehicles going forward.
Mark: So you talked about it's hard to find, were there not just not a lot of repair replacement options available?
Bernie: No, like the dealer, so from Chrysler, the tank had been discontinued and that, that's an only, it's not a Mercedes tank that fits in a Chrysler, it's actually available for Chrysler, you know, a Jeep tank. So that was no longer available. And also if it was, it was insanely expensive. There's a good aftermarket company in Canada and the US, that makes fuel tanks for pretty much anything, but they didn't make one for this vehicle either. Nothing used is available.
So we did actually have a supplier who managed to source of brand new one for us. It wasn't really cheap, but you know, much cheaper than the dealer's price so. We did get one, brand new, took a week to get it, but he had it, it's in and it works great.
Mark: So what was the problem? Why was the fuel tank leaking?
Bernie: Rusted out, and this is where we can have a look at some pictures. Yeah. So being metal, you know, any metal tank is prone to rusting over time. So some fuel tanks will actually rust from the inside out if you get moisture inside.
Anyways here's our Jeep, 2007 Jeep Grand Cherokee. Equipped with snow tires and it's a rainy Vancouver day. You can see all the rain all over it. The weather has been very gloomy lately. Snow for a while, and then rain and a lot of precipitation.
Anyways, here's a view of our tanks. Here's our brand new tank. Here's our old tank you know, you can see a lot of fuel it's leaked around it, but we'll look into things a little further. Of course, we transfer the fuel sending unit and fuel lines over to the one tank to the other and whatever hoses and pipes we need to. Leak. There's the bottom of the fuel tank. You can see it's just very rusty and there's some, basically some foam straps here that keep the tank separated from the crossmember, or the a tank mount unit. I call it a tank mount unit. It's basically the fuel tank sits in this, this very sturdy steel structure here. This is actually excellent protection from rocks and underneath hazards. So if you're going off road one, these vehicles, you can be pretty sure your tanks pretty well protected. This piece weighs a lot. I actually photographed it up against the wall or the door in our shop, but I just moving it was incredibly heavy, but you can see a lot of rust here. So what's happened over time is that, you know obviously the vehicle has been driven on roads with a lot of road salt, you know, and maybe dirt and things accumulate. Dirt accumulates in here and moisture stays trapped. And that, between that and the bottom of the fuel tank, it basically just rusts out the fuel tank. So that's the whole story there. Good shield but unfortunately, kind of keeps a dirt trapped in as well. And that can cause rust.
Mark: So is there anything that a Grand Cherokee owner, diesel owner especially, can do to prevent this from happening?
Bernie: Well, you could certainly get in underneath the vehicle and you could flush out the gas like that, I called a splash pan, that whole fuel tank area, and really try to get a hose in and wash out that area after every winter season would be a good idea. Or even if you're going off road and you go on some muddy roads, it would be a good idea every once in a while to flush that out.
However, you know this vehicle is now 2007 that's 12 years old. Will it matter at this point in time doing that kind of thing because a lot of the damage may already be be done. Now that being said, you know, we work on a lot of these vehicles. This is the first fuel tank we've seen. But certainly if you're into preventative maintenance this is a good idea. And I mean on any vehicle, and if you own a newer Jeep, you know, don't wait for this to happen. 5-10 years down the road, if you keep the vehicle a long time. Just get underneath there every once in a while or take it somewhere and get it hosed out properly. It's good to get into all the cracks of the wheel wells, under any plastic coverings. These things trap dirt. And when dirt trapped and moisture is trapped, that starts to rust the body of the vehicle as well. So those are kind of good preventative maintenance, so you can do in your vehicle, not just by just changing oils and fluids, but actual cleaning things. It'll keep it going a lot longer.
Mark: And is this a problem with the gas engines or is the plastic tank just more durable?
Bernie: Yeah, good question. I mean, plastic tanks just don't rust. So that's a great thing about them. They're not really as tough a is a metal tank in some respects, but they are I mean, I actually prefer plastic tanks because they don't rust. You just never get an issue of rust. The other thing, you know, of course with metal tanks, you know, they often get rust from the inside as well. If moisture gets you know, often moisture will get into a tank somehow and over, especially over a number of years, and sometimes fuel tanks will rust from the inside out as well.
So the thing of the plastic tank, that never happens.
Mark: And how was the Jeep after everything was repaired?
Bernie: No drips, no leaks, ran great. So yeah, it's good.
Mark: Another happy customer. So if you're looking for a service on your Jeep Grand Cherokee or Jeep in Vancouver, you can call Pawlik Automotive in Vancouver, British Columbia, Canada, (604) 327-7112 to book your appointment. You have to call and book ahead. They're always busy. Or check out the website, pawlikautomotive.com. The YouTube channel of course, has hundreds of videos on there on all makes and models of cars and repairs, types of repairs, reviews of different vehicles and how reliable they are. That's under Pawlik Auto Repair. You can find that. And of course, we really appreciate you listening and enjoying and rating our podcast. Thank you so much for doing that and thank you, Bernie.
Bernie: Thank you, Mark. Thanks for watching.
Mark: Hi, it's Mark Bossert, producer of the Pawlik Automotive Podcast. And of course we're here with Bernie Pawlik. Pawlik Automotive in Vancouver. Vancouver's best auto service experience, 38 years of servicing, repairing and maintaining cars in Vancouver, BC, Canada, and 20 time winners of Best Auto Repair in Vancouver as voted by their customers. How are you doing this morning, Bernie?
Bernie: Doing well.
Mark: So a Jeep Grand Cherokee 2011 model. What was, there was an engine noise? What was going on with this vehicle?
Bernie: Yeah, this vehicle came to our shop. The owner was complaining of a ticking sound, a fairly loud clicking sound in the engine. So we had to look at that and did some diagnostic. It definitely wasn't normal.
Mark: And what did you find was causing the problem?
Bernie: So we isolated the problem to the right hand, right cylinder bank. This is a 5.7 litre Hemi V8, and there was definitely some noise in the right hand cylinder bank. So in order to diagnose it further, we removed the right valve cover, inspected to see if we could find perhaps a loose, something loose in the valve train. This is a pushrod engine. So the cam shaft is located in the centre of the V, sort of the classic spot for a V8, and has push rods running up to the push rods and rocker arms. We didn't see anything noticeable. We rotated the engine, ran it. Nothing was excessively noticeable. But we were certain that the noise was coming from that side of the engine. And doing some research into these engines and from some personal experience, we figured that it was probably, possibly a worn out lifter or a cam shaft problem of some sort.
Mark: What was the next step?
Bernie: Next step, removing the engine. And incidentally this engine also had a leaking oil pan gasket, which can be done in the car, but it's quite a labor intensive job. So at this point we knew we had an internal engine repair to do of an oil pan gasket to repair. So we authorized the client to let's take the engine out and take it apart and find out what's going on, and then we can fix it all in one shot.
Mark: So once you had the engine out, which is a big job, and apart, what did you find?
Bernie: So what we found, and we'll just get right into the picture show here, we found that, we did find wear in the cam shaft and we found one of the lifters worn out. These use roller lifters for low friction and that's what we found was worn out. So a combination between that, those two, is causing the ticking noise.
There's our nice 2011 Jeep Grand Cherokee. Really nice condition. This vehicle has actually pretty low mileage, 114,000 kilometres. So it's still, in my eyes, kind of a brand new vehicle. This is the old and new cam shaft. So part of the replacement was to, we had to replace the cam shaft. We replaced all the rocker arm, all the lifters, rocker arms were in good shape. So the cam and lifters was basically the main component. But we also changed the timing chain and the a, it has variable valve timing. We changed the variable valve timing actuator gear as well.
While everything is apart, it just kind of makes sense. There's always wear in everything. But this is the new camshaft down here, and if you look up at the old camshaft, you can see worn parts. I'm going to just show a closer picture in a second, but you see this cam lobe is where this one has wear. There's wear in several others that's pretty pretty noticeable.
Mark: And 114,000 kilometres. Normally that wouldn't necessarily be that apparent.
Bernie: I wouldn't think so. I mean I think this is really excessive, but if you do a little research on these engines, there's a lot of problems with these, with the lifters and cam shafts wearing. We can talk a little more about why this would happen at such an early age in a minute. But again, this is a closeup view. This is the front cam and this is the one where the lifter was collapsed as well, or worn. And you can see this wear here, this pitting. The case hardening on the camshaft is coming off. And as I said, there are several other lobes. The lifters on the others were all working fine, but it was only a matter of time before they, all of this would tend to fail.
So these, interestingly enough, this is not something you're going to find on an old 426 Hemi, that the front cam journal is just going to be a big solid piece of metal. But these passageways, these are for the variable valve timing system. So up in the engine block there are passageways and there's an electrically-operated solenoid and that changes the oil pressure out to the cam gear, which is located in this area here. And that can adjust the valve timing of the engine.
So that's kind of how that's accomplished. So again, as engines get newer, this is the same old kind of classic V8 that's been around for since the '50s, but modern modifications make it work better and more efficiently.
Lifters, this is a set of lifters. These are interesting. When you buy them, they basically come as a, normally you just buy loose lifters. These coming in this plastic holder here and there, if you notice there's little round holes in some of them and not in the others. This engine has a variable, it's a variable displacement engine. So the computer can actually shut off up to four cylinders in this engine while it's running, for a better fuel efficiency and lower emissions. And it does it with the lifters. It'll basically just depressurize these. So they basically, the cam shaft and lifter moves, but it doesn't move enough to allow the valves to open, so they stay closed. So the cylinders are basically just causing no drag on the engine. Very minimal. So it's kind of an interesting system.
This is our worn out lifter here. I'm going to get into a little closer picture so we can see some details of what was happening. It's a little subtle, and a video may have been more useful, but if you'd notice, if you look at the gap between this point and that point and then you look over here where the arrow is pointing, you'll see it's substantially lower. And if I could grab this with my hand, I could, if I could show you, but what we're able to do is actually this piece will move up and down and it's not supposed to do that. So there's little needle bearings inside that have worn out and basically created a whole bunch of excessive play. And so that's, this is where our ticking noise is coming from.
Also on the lifters, they're in this plastic retainer. And there's a reason that it being a roller, of course, this has to always roll in the proper direction. And apparently these fail. I haven't seen one yet, but it's a reasonably common item where the plastic piece will break. And so the lifter will actually rotate sideways and not roll properly on the cam. And of course that will create wear in a real hurry.
So here's another kind of close up view. There's the lifter holder. There's the lifter that slips in and you can see it's got its grooved to fit properly in there. What else do we have for pictures here? I think we've, I think we've covered ... Oh yeah, the engine.
So yeah, there's the, it's a four, this is a Hemi. It's like Dodge's, Chrysler's made a good use of their branding from the 60s. You've seen a lot of their vehicles, their Chargers, their Cudas. A lot of the vehicles they sell are leftovers from the good old days in the late 60s early 70s, when their engines had huge amount of horsepower. This is a hemispherical cylinder head. The other thing, one thing's different about this over the original 426 Hemi, of course, is that it's a smaller engine, displacement wise, but it also has two spark plugs.
And as far as for details, I assume these are both fired at the same time, but there are some engines that do use two spark plugs, again, for just better combustion. It's kind of added complication. And of course when you have to change the spark plugs, it doubles the price. But they do last a long time. So that's our picture show for the engine.
Now I do have some other items if you want to ask me the next question.
Mark: Did you find anything else while the engine was out?
Bernie: Yeah. So the other item that I did notice while the engine was out is that you can see a, you could see some coolant leakage, very subtle amount of coolant leakage. You can see sort of, this is the front left oxygen sensor. And you can see some crusty buildup around this oxygen sensor. And there's a heater pipe right above this, and so very slight amount of coolant's been leaking, who knows how long, onto this oxygen sensor.
So it just made a lot of sense to change this part while the engine was out because of course you could actually get right in there and do it. I mean it's not a hideous job while the engine's in, but the oxygen sensors are actually a real pain to change in this vehicle. Very, very inaccessible. There was a lot of good things about doing this engine job, but the location of the oxygen sensors wasn't one of them. So we changed this oxygen sensor and these heater pipes, and I'll just get a little closer view of of this kind of thing.
There again you can see a little bit of the crustiness and this is a, it's interesting. It's a little, it's an assembly, a pipe assembly. It has a plastic elbow that goes through the firewall. And then there's a couple of other hoses at the other end that attach to the actual ... this is actually in the, I shouldn't say, this is in the cowl area and the firewall is actually further back. But they, it needs this adaptor to run the hose through the cowl.
What else do we have here? Oh yeah. Close up view. There's the oxygen sensor with the crusty deposits on it. Again, we changed that while the engine was out. I mean it, as far as we know it was working fine beforehand, but you never know how, that with that kind of stuff dripping on it, it'll definitely shorten the life span.
And there's one final picture of this. So this is that hose assembly. So I wanted to just get this elbow, but of course being a modern vehicle, they only sell the hose assembly. The good news is it wasn't very expensive, which is good. And it came with all the quick connect ends down here, which clip onto the heater pipes of the engine and the hoses. It comes with clamps. So the actual removal and reassembly process is actually pretty straight forward because it comes with all the parts and pieces you need. You don't need to hunt around. Do we have clamps, how do they go together? It's pretty straight forward.
But I often wonder, this vehicle's eight years old. What's going to happen when it's 15? Oh we're sorry we don't sell that part anymore. Then you've got to start custom making stuff and kind of annoying that way. So I'm back.
Mark: So you mentioned the mileage. It wasn't that high on this vehicle.
Bernie: Oh yeah. About 114,000 kilometres is really a pretty, a young vehicle. Low mileage.
Mark: So that's kind of early for this sort of catastrophic wear to be already taking place.
Bernie: I would consider that to be so, and you might want to ask, well why would that happen? And I think, I mean, there's always manufacturing defects and things that aren't made as well as they should be. But I mean really, this is where it's critical to change your oil on time or early every time. And when this vehicle was brought to us, it had, it was a little overdue for an oil change. It was a little low on oil, not critically. But those kinds of things can all make a difference. You just get a little slight lack of lubrication or the oil just breaks down a little too much. It's a little too old. That kind of thing will cause this sort of wear to happen on engines, and you never know from engine to engine.
We have customers who abuse the crap out of their car. We had a Subaru yesterday where the owner brought it in and every time she's like, if she's like 5,000 kilometres overdue for an oil change. And she'd been doing it for years. So there, I'm not saying, like you can get away with it in some cars, because some people will go, Oh yeah, well I did that. Well, yeah. Okay. You're lucky, because there's people who drink a case of beer a day and smoke five packs of cigarettes and lived to a hundred, but they're kind of rare. They are the very rare exception. So with cars, it's like change the oil. I mean that's really the critical thing. Change it when it's due. Even a little before it's due.
Mark: Could we make an assumption that this car was probably not really driven for long distances, like taken out and driven 250 miles in one goal kind of thing. It's been all stop and start in town. And that's even more critical for making oil changes on time.
Bernie: It is. Absolutely. That's a really good point. If you do a lot of straight highway driving, you can actually stretch your oil change interval out even longer because the engine is hot. It's warm. Everything's moving. Very, very good point, Mark. It's the city stop and go traffic is even harder on it. So cold starts and that makes a huge difference. So yeah, I mean even then it's worth changing the oil probably more often.
Mark: And a lot of sitting, probably, with the eight-year-old vehicle that's only got 60,000 miles or 70,000 miles on it.
Bernie: Yeah. Yeah. Not a huge amount of use.
Mark: How are Jeep Grand Cherokees overall?
Bernie: Well you can always ... thank you for bringing that. Overall, I mean, well, to me this is kind of a bad stain on the reputation of a Jeep, and if you do a lot of research you'll find a lot of these 5.7 litre engines have similar issues. You and I do a lot of podcasts on Jeeps because there are a lot of things that happen to them. This particular Jeep. It's beautiful. Like it's a really beautiful vehicle. Really nice to drive. It looks great. And I think Grand Cherokees have always been like that. I mean, they're a really nice vehicle. But they do have a lot of issues. I mean this one we, on this particular vehicle, and I think he's a fairly recent owner, secondhand. We've actually rebuilt the transfer case on it because it had an issue.
So it's had a number of problems at what I would consider a pretty early age. I have a 2001 Suburban, knock on wood. I've never rebuilt the transfer case. It's got triple the mileage of this vehicle. So there are a lot of things that do happen to Jeeps, and it could be that this one just suffered from some bad maintenance. That does happen to us. Unfortunately the risk when you buy a used vehicle, which is good to really look at, if you're getting a used vehicle, if you can look at the maintenance schedule. Because you're, there are some risks. But I'd say like for Jeeps, there are definitely more issues than average.
Mark: So if you want to look after your Jeep in Vancouver, the guys to see are Pawlik Automotive. You can reach them at (604) 327-7112 to book your appointment. You have to call and book ahead because they're busy. Can't just walk in. And they're only servicing people in Vancouver. So we appreciate your calls and interest from all across North America, but we can only serve you in the Vancouver, BC area, other than maybe some other circumstances. Check out the website pawlikautomotive.com. Of course on our YouTube channel, Pawlik Auto Repair. Hundreds of videos and articles about all makes and models and repairs over many years now. And of course, thank you so much for listening to the podcast. We really appreciate it. Thanks Bernie.
Bernie: Thanks Mark. And thanks for watching.
Mark: Hi it's Mark Bossert, producer of the Pawlik Automotive podcast and we're here with Bernie Pawlik of Pawlik Automotive in Vancouver. Vancouver's best auto service experience and 20 time winners of Best Auto Repair in Vancouver as voted by their customers. And we're talking cars. How're you doing Bernie?
Bernie: Doing well this morning.
Mark: So we're preparing for the apocalypse and we're going to talk about Jeeps. How reliable are Jeeps?
Bernie: Well they're reliable enough to get you to, if there's a zombie apocalypse, to get you out to the bush. Let's put it that way. We often wonder why so many people own Jeeps. But people love their Jeeps. The Wrangler, which is kind of your classic Jeep style which goes back to when Jeep was founded in 1943 as an army vehicle. The Wrangler is just a modernized off shoot of that. People love that vehicle and Jeep's been really successful with their SUVs, with the Grand Cherokee of course, which is a very nice luxurious, they have really nice luxurious platforms in a lot of them. They've been making that since the, the Grand Cherokee goes well into the 90s anyways.
Mark: Almost a pioneer in SUVs.
Bernie: It really is actually. I guess sometimes I argue maybe the Suburban is kind of like the original, but really Jeep Grand Cherokee really brought the SUV to the forefront and they're kind of like the poster child of the SUV and everything that's wrong with an SUV too because they're... a lot of them, they're not that big. Of course you can drive pretty well anywhere with them but they've got a hideous gas guzzling engine, not very economical. A lot of energy goes into to powering the drivetrain on these things. So really I think there was a while were the Jeep Grand Cherokee had about the worst gas mileage going for a long time. So there's some things that maybe not to be so proud of but they are an awesome vehicle in terms of what they do and people love them. And we do work on an awful lot of them. A variety of Jeep models.
Mark: Yeah, so what goes wrong with Jeeps?
Bernie: So let's just, we'll just talk for the last couple decades, say from the year 2000. As much as I hate to say it, there's actually quite a lot of stuff on Jeeps that does tend to go wrong. Let's just start on the engine side of it. So Jeeps, mostly gasoline engines but in the Grand Cherokee there are some diesel options. In the Liberty they put a diesel in for a little while too.
So let's just talk about that Liberty diesel. If you look at our list of podcasts and videos, you'll see a number of videos we've done and I won't delve too deep into them. But it is a vehicle I'd avoid. There's a lot of engine issues with these Liberty diesels. I believe it's an Italian made diesel engine, kind of a strange design and a lot of things go wrong with them. They're hard to get parts for. We're in Canada and we usually order all our parts for these out of the US where there's a lot more available but they are an expensive engine to replace. Things do tend to go wrong with them. So as I say with a lot of diesels, the amount of money to save on fuel because they are super economical on fuel, you will pay in repairs over the long run. And these Liberty diesels they were only around the 05, 06, 07, somewhere around that model year. So these are starting to get pretty old and we're seeing less of them getting repaired nowadays because I think they're just getting less economical as they tend to get older.
The Grand Cherokee had the Mercedes 3 litre diesel for a few years in the mid 2000s. I think 06, 07, 08 somewhere around that range. Just a few model years. We repair a lot of these. Again look at our videos and podcasts because we talk a lot about these. But same kind of typical stuff that we find with the Mercedes ML320. It's a common used engine and there's a number of things that tend to go wrong with these. Again over time.
Mark: Keep up your maintenance.
Bernie: Well, keep up your maintenance that's really the key factor with these things. But even if you keep up your maintenance, you're still going to run into a number of issues that tend to go bad with them. But there's some good maintenance items that can save you some money over time and we can make sure we take care of those in our shop. But as I say, look at our videos and podcasts, there's some good ideas.
Jeep stopped making the diesel for a while and then they brought it back with a... you know when Fiat bought out Chrysler, they brought back a Fiat version diesel and to be honest with you, I've never seen a problem with them. They're not really common. I think they've been out for about 5 years now. I don't hear a lot of bad things about them but I have to say, to me having been in the car business for a long time, to me Fiat and reliability just don't tend to go along well together. So I worry that given time that Fiat diesel could be worse than the Mercedes one, but who knows, maybe it's better.
So gasoline. So as I say most of them are gasoline. I mean, all the Wranglers are gasoline, they're mostly V6 engines. Pretty reliable. I mean, we don't see too much with those. A few oil leaks here and there. Some coolant leaks. Water pumps, those sort of things. On the Jeep Grand Cherokees and some of those models they're available with V8s. Hemis, there's some issues with those which we're going to talk about next week on an engine repair we're doing. But there's a few engine issues with these, they're not bullet proof reliable, as good as you'd think. You might think they'd be being the type of engine they are. The earlier straight 6s that they put in a lot of Jeeps and this went into the 2000s, those were really good engines. Really bullet proof, reliable engines. So if you're looking at something older and you can get on of the 4 lire straight 6 engine, those were really tough. I've seen people abuse them horribly and they still survived really well. That was a good engine.
Then we have some smaller Jeeps, Compasses, those type of things. They tend to be fairly reliable. A lot of them with 4 cylinder models. Pretty decent. And of course, I'm sort of thinking back to the V6 versions of the Liberty. The gasoline model, definitely not a great engine. A lot of problems with those, with timing chains and valve seats slipping out of the engines. Definitely, you know to me, a Jeep Liberty is not a great vehicle to own. You're probably going to have a lot of issues with those. Seems like the engines, whether you or gas or diesel you're going to have some issues with those.
Oh yeah, cooling system. You know especially with Jeep Grand Cherokee, they tend to have radiator problems I tend to think ahead of their time and they're an expensive radiator repair. The way they're built with the Chrysler style of doing it, they've sandwiched the, they've sort of built the radiator, the AC condenser and the power steering cooler, it's all kind of a modular assembly all put together. And taking the radiator out is a lot of work on these vehicles. So expect to pay a lot of money when you have a leaking radiator on a Jeep. And we've seen some too where the transmission cooler fails. So you get transmission fluid inside the radiator or worse. If you get coolant into the transmission, it'll cause the transmission to fail. But fortunately most of them we've seen have gone the way of going into the radiator which is at least more repairable. You have a good cooling system flush in the radiator. It's a much more complicated repair than I think it needs to be and myself, and my fellow technicians we often curse and swear when we do it. We go "Why did they build it like this!"
Mark: So what about the transmission and drive train?
Bernie: Generally these are pretty reliable. We don't run into too many problems with them. Yeah, generally pretty decent. Although, actually I will say, transfer cases. There are a few issues on the, you know, the manual transfer cases on the older models and some models are pretty much bullet proof. But there are some electronic transfer cases on Grand Cherokees. They have an actuator unit that tends to fail prematurely and we do find the odd transfer case issue. But the differentials are generally pretty good. The CV axles are pretty well built. Not too much problem with those.
Brakes again, you know, I'd consider them average. There's nothing that tends to go wrong with those prematurely than any other vehicle. Usually of course, pad and rotors need to be replaced. Some models have to have drum brakes. But yeah, they're generally good and reliable. A lot of them have ABS brakes and there'll be the odd ABS brake sensor that will fail and need some repair. But generally the brakes are pretty reliable on these vehicles and nothing above average for repair.
Mark: And how's the steering and suspension?
Bernie: Well there's some issues there with some models. You know in a lot of them, especially I'm thinking the more the Wrangler style. The tie rod ends tend to wear out probably sooner than they could. The ball joints on a lot of models tend to wear out. There's some control arm bushings on some models. The suspensions are different depending on again, which vehicle you're looking at. But there's probably a higher than average number of repairs needed on the steering and suspension system on these vehicles. Some rack and pinions on certain models as well. So you can be prepared if you own one of these that there'll be a few, you will be spending a few more dollars than you would on some other vehicles.
Mark: How's the electrical system?
Bernie: Generally pretty good. You know on some of these they're pretty complex especially on the Grand Cherokee. some of them are pretty fancy vehicles. But generally they're pretty good and pretty trouble free.
Mark: And how is the body, fit and finish?
Bernie: Well some of these are, I'd say ok. I mean especially the Wrangler of course is a more utilitarian vehicle so it's not quite as fancy and people don't expect it to be. I find like the Jeep Grand Cherokee, when they're new, they tend to be really nice but as they age they tend to get, I don't know, they get a little creaky and the fit and finish doesn't seem to be quite as good as they were when they were new. But we don't really run into a huge amount of electrical problems with them.
It does get me thinking, you know, the one thing we haven't talked about really is the air conditioning and heating system and there are a number of issues with Jeeps. And again, I'm thinking more of the Grand Cherokee models with AC evaporator core problems and heater core issues. You know, these can be expensive repairs that require the dash to be removed. So we see that on some models, not all but occasionally they do have issues like that that need to be repaired.
Mark: So to sum it up other than freeing yourself from a Liberty at all costs, how are Jeeps overall for reliability?
Bernie: You know again I'd say probably a little below average for some. I think a lot of people buy Jeeps because they like the vehicle and to me I thinks that's kind of one of the most important things in owning a car. Do you like the vehicle? Does it suit your needs and is it what you want? You will be paying a slight premium to own a Jeep in terms of repairs for that kind of thing. As I said, the Liberty is a model I'd avoid. There's a couple there to avoid but the Grand Cherokee is decent. The Cherokees are good. The Wranglers are ok. You will just spend a little more money than you would on some other vehicles.
Mark: So there you go. If you're looking for service and maintenance on your Jeep in Vancouver, Bc Canada. The guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment. You have to call and book ahead because they're busy. Check out the website pawlikautomotive.com. Hundreds of articles and blog posts on there about all makes and models of cars and repairs and reliability reports as well. And of course, our YouTube channel, Pawlik Auto Repair, same thing. Many videos over 400 now. And thank you so much for listening to the podcast. We appreciate it. Thanks Bernie.
Bernie: Thanks Mark and thanks for watching.
Mark: Good morning. It's Mark Bossert here with Bernie Pawlik and the Pawlik Automotive Podcast. We're broadcasting from Vancouver, BC and we're talking cars. How are you doing this morning, Bernie?
Bernie: Doing very well.
Mark: So, today's victim is a 2007 Jeep Wrangler that had a metal brake line replacement. What was going on with this Jeep?
Bernie: Yeah, so the owner ... We'd actually just had this vehicle in for service recently and the owner called back and said, after I picked my vehicle up, I noticed this chemical smell coming out of under the hood, and the brake warning light came on. And I thought, okay, it's kind of odd because we'd just done an A service on the vehicle which is an oil and filter change, basic inspection. And we do look around the vehicle. So, any leaks and that sort of thing we noted. Looked at the fluids. All fluids were full. But I suspected, maybe when our technician did the service, maybe when he took the rad cap off, sometimes it's under pressure, a little bit of antifreeze leaks out, causes a bit of an odour. I thought maybe that's what was going on. So, that's basically why the vehicle came in. Chemical smell and the brake warning light on.
Mark: So what did you find was causing the owner's concerns?
Bernie: Yeah, so the first thing I did, I looked under the hood, didn't see any leaks. But I did notice the brake fluid level was exceptionally low. It took a lot of brake fluid to fill the master cylinder up. Which was very odd because when we did the inspection, the fluid level was full. So when we did the inspection and left our shop, there was no issue with that. I looked under the vehicle, I could see, oh, there's brake fluid leaking from one of the metal lines down below the master cylinder. And on further inspection, I could see that it had actually been spraying out of this small pinhole leaks in the metal line right onto the exhaust system. So there's the chemical smell right there. So, that's what we found. So this line had just ruptured. It's kind of one of these weird things. We get this, oh, ever since you worked on the car, this happened. Well, sometimes we do make mistakes. But a lot of times there's just weird coincidences on cars. And this happened to be one of them. It just happened that the moment she picked the car up, this brake line decided to burst. And that's what happened.
Mark: Any idea why, what caused the break line to rupture?
Bernie: Well, I'm going to say it's a manufacturing defect. And let's just look at some pictures here and then talk about that a little more.
So you can see the Jeep, our nice 07 Jeep Wrangler here in great shape. Well taken care of. Our owner of this vehicle takes good care of this vehicle. Outside and in, and mechanically. So there's the leak that we found. So this is looking ... Actually, I'll just go back to the picture of the Jeep again. So, the actual line in question is right here. The brake master cylinder sits up here. There's an ABS brake unit here. A lot of metal brake lines, and they all kind of run down the vehicle off to their respective wheels. And there's the two that run to the rear wheels, go right down in this fender area. So that's where this next picture is of, so this is just looking in the left front wheel. You can see a fluid leakage, quite a lot of brake fluid here and you can see a bit of rustiness on this brake line.
Now again, as I said, I mean when we do an A service, we have the vehicle up on a hoist. We look around. Stuff like this would be very evident. We'd be pointing it out immediately to the owner. So kind of unfortunate, but it kind of just burst right after it was brought ... After delivering to them. Here's a couple other closeups. So this is the line removed. You can see it's basically a plastic coated brake line. So they did their work from the factory to try to prevent rust corrosion. But for some reason, you can see little cracks in the line. And the line is bulged under the plastic. I actually took it on a wire wheel and just ground ... Basically removed the plastic. You can see the metal underneath is completely pitted and rotted. And this is the area of the leak right here. So why it happened? I would say probably a manufacturing defect.
Somehow, something must have caused the line to corrode. Sometimes break lens will be near a ... Say they'll be underneath the battery and you'll have battery acid leaking out. Or the vehicle is driven and very salty road conditions. But none of that's the case. This vehicle is from Vancouver, there's very little road salt used around here. And metal brake lines generally lasts a long time. Back East in the US and Canada where there's a lot of road salt, brake lines will corrode much faster. So, don't really know for sure what happened. I say it's really strange because it's a very thick plastic coating on here. But there must have been something underneath here at the factory that just caused it to sort of eat away at the line.
Mark: So what's involved in replacing? And is it just this line, or did you replace all the lines?
Bernie: No, the other ones look fine. I mean, I did a visual inspection. If you noted in that picture there was two lines running beside each other. I did a visual inspection of the other line. It looks perfectly normal. None of the bulging that was evident on this particular line. So, I mean it's possible there could be something festering underneath. But at this point there's no reason to change it. But basically what was involved is replacing this particular brake line. And this line runs from the ABS brake unit, just in front of the master cylinder along the frame rail to the left rear wheel. So we replaced the line, completely removed the old line, replaced the whole complete line with a brand new line. We custom make it, bend it, flare the ends, that's the best way to have a solid line. I mean, it could be replaced in just a piece. You could replace just a portion of it. But why bother when, who knows what's further down the line that's hidden that we see further down the line. That's funny how that kind of came out. But literally further down the line. So yeah, it's better just to replace the line complete. And we're 100% sure it works.
Mark: So, this Jeep is now 10 years old, how are they for reliability and repair ability?
Bernie: Yeah, they're pretty good. There's things like the front end parts on Jeeps tend to wear out perhaps a little faster than they could. Some oil leaks and things that occur, but overall it's a pretty good vehicle. The owner hasn't spent a ton of money on this thing. It's been pretty good. There's been a few repairs, but just generally it's been pretty good.
Mark: So there you go. If you're looking for any kind of repairs for any kind of problems with your brakes. Or you just need a really reliable mechanic in Vancouver, the guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment. You have to call and book ahead. They're busy. Or check out the website, PawlikAutomotive.com. The YouTube channel, Pawlik Auto Repair. And of course, thank you so much for listening to the podcast. We appreciate it. Thanks Bernie.
Bernie: Thanks Mark. And thanks for watching.
Mark: Hi, it's Mark Bossert, producer of the Pawlik Automotive podcast. We're here with Mr. Bernie Pawlik. Pawlik Automotive, in Vancouver, British Columbia, Canada. We're experiencing winter starting. It's raining here, and of course, Pawlik Automotive are 19-time winners of Best Auto Repair in Vancouver, as voted by their customers. We're talking cars this morning. How you doing, Bernie?
Bernie: Doing very well even though it's raining.
Mark: So we have a 2005 Jeep Liberty diesel, that had a no-start problem. What was going on with this vehicle?
Bernie: The owner of the vehicle had pulled over his vehicle, it was running fine, stopped to do something. Went to start it. Turned the key and it wouldn't start. All the lights came on in the dash, but when he turned to the start position nothing happened. So had the vehicle towed in, and we proceeded to do some testing and diagnosis.
Mark: What actual testing did you do to find the cause?
Bernie: Well, look, of course the first thing with a no-start issue is to make sure the battery is in good shape, so we tested that. And it was pretty apparent that everything ... The battery was good, everything seemed to be working but there was no starting. The starter wasn't working, so I thought maybe the starter's the first thing to test, and it's relatively easy to access on this vehicle so we tested the power in and out of the starter and the solenoid, and the various wiring tests we do, and verified there was no power getting to the starter solenoid. So we knew the problem was somewhere else. There's relays, there's wiring, there's an ignition switch; these are all the other components. So we proceeded to test all these items and basically narrowed it down to a problem inside the ignition switch area.
Mark: With a diesel, is there anything different within that system, starting system, that's different than other fuel type engines?
Bernie: No, actually, the starting system is exactly the same as a gasoline engine. The only difference with a diesel is that usually they have a much more robust starting motor, because the diesel has a much higher compression, so it needs a more powerful motor to start. But if you look at the starter motor it doesn't look particularly large in comparison to a gasoline starter. It's kind of the way modern technology with starters has gone. They used to be ... you could notice a diesel starter was substantially bigger. Nowadays they look pretty much the same size, so they pack a lot of power in to a small space, but the actual electrical system and the starting system is exactly the same.
Mark: Once you narrowed it down to the ignition switch area, what was the actual cause?
Bernie: Well, what we found was there's actually an actuator pin, or coupler assembly, in between the ignition switch and the actual electrical portion of the ignition switch and the lock cylinder. Usually within the ignition switch you have the lock cylinder, the place you put the key, and then that usually connects to the switch, the electrical part. And in this particular vehicle there's actually a coupler that goes in between the two pieces, so we'll just get in to a little picture show here, and I'll show you what's actually going on. There's our jeep in the shop after repairs, and that's the coupler piece that's broken. This sits inside the steering column. There's the ignition switch, the part where the key sits over in this part here.
Mark: To the right.
Mark: To the right?
Bernie: Yeah, that's right, yeah. Sits over here, and then there's a little slot that fits inside this metal barrel here, and this connects over here, and then this, the ignition switch, the actual electrical part, clips on to this portion here. Now I've two arrows here. The yellow one shows a little metal piece here, and if you notice, where the red arrow is, there's not a metal piece. Well there's supposed to be one there. What happens is this actuator pin, the metal piece breaks, so when you the key it wasn't actually allowing it to turn quite far enough to actuate the starter. So that's basically the issue, so this part is the piece that needed to be replaced. And interestingly enough, it's amazing how cheaply built this part and component is, and everything kind of snaps together. It's plasticky and cheap, and I just sort of reflecting while I was working on it, how this is kind of at the time when Chrysler and Mercedes were married. You know, two companies. You couldn't really build different vehicles. I mean this stuff, it's made cheap and simple and snap-together, and if you look at a Mercedes, it would be much different in assembly. It's amazing that corporate marriage lasted as long as it did, because really very different building philosophies for these vehicles. Just a little side-thought there.
Mark: Is this an easy repair?
Bernie: Not really difficult. I mean, the diagnosis took a while, just to figure out where the actual cause of the concern was, but the repair itself is not all that difficult. However, as far as parts go ... that part we ordered a replacement after-market part, but if you go to a Chrysler dealer they'll sell you the whole steering column. So there are after-market parts available, you can just get that one piece, but if you go to Chrysler you're going to spend an awful lot of money on replacing that, and a lot of extra labor.
Mark: Good to know. Once back together, I guess everything started properly?
Bernie: Yeah, it worked fine. Worked great, just like it should.
Mark: Is this a common issue on a certain range of Jeep Liberties?
Bernie: Well, this is the first time we've actually replaced this particular piece, but it, as I mentioned, there's an after-market part available for it, so once somebody makes a part like that it's a pretty common problem. It just, for some reason it's the first time one of these has come in to our shop, and after ... it's a 13 or 14 year old vehicle at this point. But the owner had said that this problem had happened previously in the past, too, and he'd spent a lot of money at Chrysler having it fixed, so I assume he got the full steering column treatment, but it didn't last a whole lot longer. Sometimes when you look at a part, and you go, "Why did they build this so poorly?"
Mark: So do other models of Jeep use this same full Chrysler steering column treatment repair?
Bernie: They do, actually. So this part actually will fit a variety of Chrysler vehicles. Not just Jeeps. Everything right to Neons, and it's used in a variety of different vehicles from 1995, all the way up to 2007, so again, it's a common part and it may be if you have the same issue, that's that's the cause of your failure, but without testing things properly it's impossible to know, because there's so many other things that can cause it, but it's definitely a good place to look.
Mark: Now, what was this part called again?
Bernie: It's called an ignition actuator pin.
Mark: So there you go. If you're having some starting issues with your Jeep or Chrysler product in Vancouver, the guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment. You must book ahead, they're busy. Or check out their website, pawlikautomotive.com. You can see our YouTube channel, Pawlik Auto Repair. Hundreds of videos covering all makes and models of cars on there, and thank you so much for listening to the podcast. Thanks Bernie.
Bernie: Thanks Mark. Thanks for listening. Thanks for watching.
Mark: Good morning. It's Mark Bossert here with the Pawlik Automotive podcast with Mr. Bernie Pawlik of Pawlik Automotive in Vancouver, 19 time winners of Best Auto Repair in Vancouver as voted by their customers. How you doing this morning, Bernie?
Bernie: Doing very well.
Mark: We're gonna talk about a little issue that we noticed earlier in one of our earlier podcasts where you brought up a dash warning light picture and there was a whole bunch of lights that I'd never seen before, and I went, what the heck are all these? You're gonna show us what the dash warning lights are on a 2008 Jeep Grand Cherokee. It's a diesel model. What was going on with these lights and what are they?
Bernie: Well, let's start first of all. I think we're gonna start an educational series on dash warning lights because a lot of people don't really understand them, and it's really important to understand what they mean because they can create a lot of stress if you don't know what they mean, or if you don't know what they mean, you can also make dumb decisions by ignoring them. We'll start with this Jeep and work our way through. The first place to start before I get into the picture is there's basically two major colours of warning lights. There’s amber lights and there's red ones. The red ones are lights to be taken seriously right now. Amber ones are okay, something's going on, and you need to get some service or something addressed down the road. You'll notice often a car check engine light, which is a pretty popular light on every car, is an amber light. When it comes on, it doesn't mean oh my God, you gotta pull over. The only time with a check engine light you need to be really concerned is when the light is blinking because that indicates a catalyst damaging engine misfire, and that essentially you can keep driving the car, but it's gonna cost you a lot more money if you keep driving it for too long. That's the only time that light should probably be red, but it doesn't. It's an amber light telling you there's something that needs to be serviced.
Mark: Amber and blinking.
Bernie: Amber and blinking. Yeah, amber and blinking is serious, but that's the only light that's kind of an anomaly.
Mark: Have you got a picture?
Bernie: I do, because yeah, that would really make this a lot more entertaining. Okay. Let's get in the picture of our Jeep. I'll just hide us out of the way here somewhere so we can actually see this warning light. When you turn the key on to start the vehicle, you'll normally get all of your warning lights coming on. Sometimes they'll just blink on for a second or two, and I realize one light I didn't capture on this, this is the Jeep diesel. There's one light that sits right here. It's a little yellow light that looks like a coil sitting sideways, and that is the glow plug warning light. That light's not on on this particular picture correct I guess it switched off kind of quickly. The glow plug warning light, by the way, will come on for a longer period of time when the engine's cold. You'll also notice if you own an old diesel vehicle, back a couple of decades, the warning light will stay on a lot longer than modern diesel. Some of them they'll just stay for, even cold, a second and then shut off. But the key with this light is you want to wait, when you turn the key on, you want to wait to start it til after that light goes out. The other thing, this is a diesel model. The only difference, and I actually went through a manual on the Jeep Grand Cherokee. The only difference between the dash on a gas and diesel model is in this spot here that I'm circling where the glow plug light is, this has a tow haul warning light that's basically with the automatic transmissions. That's basically an automatic transmission mode that's available.
There is also on some of them, a four wheel drive low warning light that does come on in this spot as well.
Let's go through some of these lights, and I'm gonna point out. There are a couple that are not illuminated in this picture as well, but let's start with the red lights. You have your brake light right here. Now, there's an I and a P. P is for parking brake. The I indicates a brake system issue. Normally when this light will come on is it either ... The key is once you start the engine, if these lights remain on, that's when it's a concern, or when you're driving and the light comes on. Generally the brake light will be on when you have the parking brake on. If you take the parking brake off, this light will go off. The I light, this is probably just one light that does two functions. A lot of cars are like that. That can often indicate there's low brake fluid in the brake master cylinder reservoir. If you have your parking brake off and the light's off, go check your brake fluid level because it could be low. Now, low brake fluid shouldn't happen. It's an indication of one of a couple things. It could be that the brakes are worn out, or nearly worn out, or that there's actually a leak in the brake fluid system. But you can top it up, put the light out, but you should go in for service and have it looked at.
This here is your seatbelt light. As long as your seatbelt, if you're sitting in the drivers seat, or you have a passenger and they're not buckled in, this warning light will come on.
This is the airbag system warning light. This will test the airbag system, and if all things are good, it sometimes takes a few seconds. Sometimes they blink a couple of times, depends on the vehicle, but on the Jeep, essentially the light will go out and if it's out, then your airbag system is all working fine.
Other red lights. This red light here on a Jeep is for the security system. It's just basically a round dot. Again, it'll go off when the vehicle's running. If it blinks or does anything weird, there's an issue with the security system. Something that will need to be repaired and fixed. But of course, it won't likely cause you any problem to drive the vehicle. It just indicates if you care about your security, it's important. But also there can be an issue with the security system where the vehicle won't start, so if that light stays on and won't start, that could be an issue. Again, you'll be taking it to a shop to get it fixed.
This is a warning light that's a throttle issue warning light. This is a pretty serious warning light on Jeeps. It's on gas motors as well as diesels, and the particular Jeep that kind of inspired us to do this, we had a couple of weeks ago with some intake manifold runner issue. While diesels don't really have a throttle, it indicates a serious malfunction that normally when this light comes on, the vehicle will be running in a reduced power mode just to get you to a shop to fix. Sometimes you can shut the key off and you can restart the vehicle and the light will be off, so that might get you to where you want to go. That's always worth a try when you have a warning light on, by the way, except for this one. This is the big one. That looks like a can of oil? When this read light is on, that means there is insufficient oil pressure in the engine, and that is critical. Now, that light can also go on because the sensor malfunctions, but you don't really want to make an assumption on that. I have owned vehicles where this light has come on, and if you don't hear a ticking noise in the engine, you could take a risk of driving it, but I wouldn't. If this light comes on, shut the engine off and have it towed to a shop and have it checked out. You'd be better to change the sensor than you would be to have to replace the engine if you make the wrong judgment call.
Mark: Would that be if you're a little bit not scared of lifting your hood, and what about checking your oil at that point?
Bernie: Absolutely. Yeah. That would be the first thing you'd want to do. Thank you, Mark, for mentioning that. Shut the engine off right away, and go check your oil level. Now, if the oil is low, add a litre at a time. I've had people who they look at the dipstick, oh my God, there's no oil in the engine, and they'll go get a five litre jug of oil, pour it all in at one time and then the engine is overfilled. Seen that many times. That's not a good thing to do.
Mark: That's really bad.
Bernie: Yeah. It is. Add a litre at a time. If it's way, way, way down, that's obviously it needs work. But this light is not a low oil level warning light, so just be aware that when this light comes on, it's usually a very serious issue unless the electrical sensor is bad, and that does happen from time to time. Sometimes it's not a bad thing, but you need to address it. Of all the lights on the vehicle, this is the one you want to take the most seriously because it's the one that can cost you the most amount of money to ignore.
Now, on the left side of the dash, we have this light that says plus, minus, it looks like a battery. It's basically, as Chrysler describes it, it's a low voltage warning light. It looks like it's a battery problem, but usually it'll indicate that the alternator's not functioning and charging the vehicle. But there's a number of other things that can happen. It can even indicate that the belt has jumped off the front because the alternator's belt driven. Now, you would notice that too because your power steering would become very stiff. If that light's on, and often some other lights will come on at the same time, it's a pretty good indication that your belt has skipped off. But not to diagnose stuff. When that light is on, it's something pretty serious to deal with. You may be able to drive the car, but not for long because modern vehicles consume a lot of electricity. Batteries, even good ones, don't last very long. You might be lucky if you got an hour's driving time before it dies. Diesels do require a lot of electricity to fire the fuel injectors as well, but gasoline motor, same kind of thing.
There we have our red lights. I'm just looking at a picture. See, on the Jeep as well, a couple lights that aren't on here. There's a low fuel amber low fuel warning light, so let's get into the amber lights. There's a low fuel warning light that'll come on here. Looks like a gasoline pump, so that'll come on when your fuel level is down to a certain point. Pretty self-explanatory. I'm just looking to see if there's anything else we're missing here. I think that's pretty much covers it. So, let's get into the amber lights.
This tire pressure monitor light. These lights will come on, sometimes they'll blink, sometimes they'll just be on, but any vehicle that has a tire pressure monitoring system, it's a fantastic feature because you don't really have to check your tires every week or every month. When the light comes on, that's when you need to pay attention to it. Again, unless you're noticing the vehicle's handling badly or making a thumping sound, because it could do that if it's lost all its pressure. If the light comes on, give a walk around the car and just look at your tires. Make sure none of them are flat. If they all look reasonable, go get the pressure checked as quickly as you can. Don't do any long highway trips. Make sure the pressures are all good first of all. If the light remains on, some vehicles require you to reset them. Jeeps are not like that. They have a sensor in the tire, so once the pressure's set, the light should go out. If it doesn't, then you have a problem with the system that needs to be addressed and you'll have to take it to a shop.
Over here, the ABS light. Now again, this is an amber light, but ABS is the antilock brake system. It basically provides better braking than the regular brake system, but without it, you'll still be able to stop the car fairly well. But again, that's a warning that there's a problem with the ABS system that needs to be addressed and you should take it to a shop and have it looked at.
Check engine light we discussed earlier. Again, if it's on, take it to a shop at some point, get it scanned and diagnosed. See what's going on with it. But if it's blinking, that's when you need to take a lot of caution. You should it repaired right away because you'll cause some costly damage.
Moving over to the right, we have the traction control system. Sometimes this light will come on. The traction control system helps the vehicle basically grip when it's slippery, so often it uses the ABS brake system to do this, or various other sensors. If there's a problem with the system, the light will be on all the time. But sometimes you might accelerate, say, on a slippery road and it'll loose traction and you'll actually feel it and this light will start blinking, and then it goes out. That's no big deal. That's just indicating something's happening. But if the light's on all the time, the traction control system's got an issue. A lot of times it'll come on with the ABS light because some of them work in conjunction with each other.
Finally, our last light is the ESP BAS. Now, ESP is electronic stability programming. BAS is a brake assisting system. That, again, these are electronic sensors often related with the traction control system, but it's basically there to keep your vehicle stable on the road. Some vehicles it'll tune your suspension system so it's essentially there so you don't lose control for simple things like going around a corner too fast. I'm not saying you should drive crazy around a corner, but it's when you lose traction for certain things, electronic sensors will come in and they'll activate the ABS brake system or activate the throttle and help you keep your car more stable on the road. These are all good things. Again, if this light's on, there's something going on that'll need to be checked, but again, they're amber lights.
A couple other lights I haven't talked about because they're not really warning lights are the turn signal lights. There's also the high/low beam indicator. The high/low beam indicator on a Jeep is here. It's usually a blue light. That's a long winded version of what's going on in your dash, and yeah. Again, with red lights, more serious. Amber lights, get it checked soon.
Mark: Thanks for going through that. Do you have any final thoughts?
Bernie: I think I just said it. Just red lights, take them seriously, especially that oil light. That's a really critical one, and also a number of vehicles have a, and we'll talk about these with different vehicles. I don't believe Jeep has a low oil level warning light, at least I haven't seen that when I looked through the manual, but this is a good reason to look through your owner's manual. If your vehicle has a low oil level warning light, this is a good light to have because when the oil gets down to a certain level, you can go check it and find, oh, it's low a litre or two and then you top it up and there you go. It's critical to know whether you have that versus the red oil can light because once that light comes on, it's serious stuff.
Mark: There you go. If you need more information about your vehicle or service, in fact, for your vehicle or repairs, the guys to see in Vancouver are Pawlik Automotive. You can reach them at (604) 327-7712. That's the number to call if you need to book an appointment in Vancouver, or check out our website, PawlikAutomotive.com. YouTube videos, Pawlik Auto Repair. Hundreds of videos on there about all makes and models of cars over the years, and of course thank you so much for listening to the podcast. Thanks Bernie.
Bernie: Thanks Mark. Just as a last thing, what should people do if they're not from the Vancouver area?
Mark: Feel free to search around and find a good service advisor, a good shop in your area to get your vehicle repaired. They will be able to give you the same kind of information and support that we do here on the internet. Thanks.
Bernie: Thank you. Thanks for watching.
Mark: Hi, it's Mark Bossert here with Mr. Bernie Pawlik of Pawlik Automotive in Vancouver. In today's podcast, we're talking about Jeeps. How you doing this morning, Bernie?
Bernie: Doing very well.
Mark: So, we're talking about a 2008 Jeep Grand Cherokee, three-litre diesel, that had a swirl valve motor problem. What was going on with this Jeep?
Bernie: So, the owner of the vehicle brought the vehicle to us with a ... Their complaint was that there was a warning light on the dash. It looks like a lightning bolt, and at the same time that that happens, the vehicle loses power. So, it's basically a power loss indicator light. The check engine light was also on at the same time.
Mark: So, this vehicle has the famous Mercedes three-litre diesel. Is there something different about this power plant in a Jeep?
Bernie: Not really. There's only a few subtle differences, but I mean, essentially, the engine and how it operates is the same as a Mercedes three-litre. Most of the parts are interchangeable, but there's some emission items and some of the air intake ducting is slightly different on the Jeep, but most of it is the same as the Mercedes. Not exactly, but the guts of the motor are definitely the guts. When you take it down to the basic engine itself, it's pretty much exactly the same.
Mark: So, the swirl valve motor ... Can I say it right? I'm old, I can't say it right. The swirl valve motor, I would assume that was the cause of the problem?
Bernie: Well, it was part of the problem. The swirl valve motor, essentially what it does is it operates some valves in the intake manifold. The intake manifold has two runners in it to each cylinder, and one of them can be opened and closed ... The ports can be opened and closed with the swirl valve motor, and the reason for that is just to increase or decrease air flow and the rate of air flow into the cylinder, depending on different engine conditions and different engine speeds. So, the swirl valve motor will actually operate these valves, and what can happen is the valves also get carboned up, or the actual rods that are actuated are made of plastic, and they tend to wear over time, sometimes quite severely. We've seen them really badly worn on a lot of Mercedes and Jeep products over time.
Mark: What about other parts? Is there other parts that need to be replaced at the same time, typically?
Bernie: Well, yeah, so this job we started off with the swirl valve motor being the complaint and verified that was the issue, but we also noted, as soon as we started taking things apart, there was a lot of carbon deposits in the intake ports, and we ended up removing the intake manifolds, finding a severe amount of carbon deposits in the intake manifolds and cylinder head ports, which is not uncommon. It's about 230,000 kilometres on this engine. It's kind of a normal amount you'd find. Also, there was some oil leaks from this engine, and right underneath the intake manifold sits the engine oil cooler, which is a very common cause for oil leaks. There's some seals that hold the oil cooler down in the engine, very common. So, we replaced those while we had it out as well.
Let's get into looking at a few pictures here of what we found when we removed the intake manifolds. Okay, so here's a view of the dash with all the warning lights on, just when you turn the key on initially, and that is the light of concern for the client, with the yellow arrow pointing to it. That looks like a lightning bolt, and that is basically a power loss indicator light, or that the vehicle's in limp mode because of a major issue. Also, you have the check engine light over here, which was on. The owner told us it had been on for a long time for a glowplug code. There was a code for the swirl valve motor, also an issue with the glowplugs, and we actually serviced and replaced those.
Well, we did this, but that's a story for another podcast. So, there's our instrument panel. Let's get into looking at a couple other items here. We'll have a look at the swirl valve motor. So, that's the bottom side of the swirl valve motor. Again, it's kind of oily and grungy. That's kind of a common cause of issues with these motors. There's the top view of the motor, electrical connector. Carbon deposits, this is the ... It's a plastic piece that connects the two intake ports and connects it to the air duct from the turbo, or, I should say, from the inter cooler. The EGR port is here, and these are the intake manifolds. You can see just how much carbon is in here and just to really appreciate how much carbon is in there, this is what it looked like after we cleaned it, a profound difference. I mean, there was probably ... If you look at this view here, there's, I don't know, less than 50% airflow available through that particular area.
Mark: Yeah, I was going to say, two-thirds blocked, basically.
Bernie: Yeah, exactly, precisely, and looking ... This is the cylinder head. Sorry, the intake ports in the cylinder head. You see there's a round one, this is where the swirl valve is located. In this one here, there's no valve, it has constant airflow. But again, you can see there's at least ... There's only 50% airflow available through this port as well, and a little more here, but it's still restricted. There's a view of the intake manifold, the old manifold. Again, you can see a lot of carbon on these pieces. So, this is actually the swirl valve here. Mercedes uses a different name for it. It's like a variable intake runner, but Jeep uses the word swirl valve.
These plastic rods here, there was some wear on these. It was warranted replacement, but we've seen these where they have some extremely bad wear, and on newer versions of this engine, like a Mercedes from 2009 and newer, they actually have a little switch at the end of this rod, so when the swirl valve motor moves the rod, it will actually cause a switch to send a signal to the computer that it's actually working, and when these get worn badly enough, it'll actually cause the trouble light to ... Check engine light to come on and set a trouble code for the intake runner not operating. So, when these get really badly worn, that'll happen, but on an '08 and older, and on Jeeps, that code is never an issue because they never monitored that particular thing. There's another closeup view. Again, you can see all the carbon deposits in the intake manifold, and there's a view of the valley of the engine, the oil cooler. That's the oil engine cooler. You can see the intake ports. We've cleaned them out. There's still some carbon in there, but generally, 99% of it's been removed.
Mark: So, what causes all of this carbon buildup, and why is it so common on so many diesels?
Bernie: Carbon buildup? Two things. First of all, diesels, as you can see on ... Especially on not-modern diesels, there's a lot of soot, so there's a lot of particulate in diesel exhaust, and the reason you get the exhaust into the intake system is because of the EGR system, exhaust, gas recirculation. It helps lower the NOX emissions substantially. That's a big issue on diesels, so having a good EGR system is important. Plus, it also cools the combustion temperature, which actually eliminates NOX. Yeah, I mean, it really is ... Stepping around things here, really, it's all about emissions. So, that's why, and they're pretty sophisticated systems on more modern diesels because the emission requirements are so stringent. That's why we get so much carbon deposit.
Mark: And NOX is nitrous oxide, is that right?
Bernie: Oxides of nitrogen, yeah. The air has oxygen and nitrogen, and nitrogen's inert gas ... It doesn't do anything with combustion, but it does combine with oxygen and creates some hideous pollutants.
Mark: It forms a particle, or there's particles that are just part created from the combustion process, is that ...
Bernie: Particles from diesel are actually not NOX, they're actually ... It's actually just particulate. I believe it's just soot from the combustion process. Yeah. I did have someone explain how soot and all those details work, but I'm not quite ... But it's part of the combustion process, but it's not NOX. It's kind of a smog-producing chemical, among other things, and obviously not good to breathe, either.
Mark: Yeah, it would kill you.
Mark: So, what happens when the carbon deposits get really severe?
Bernie: Basically, your vehicle won't go anywhere. In the past, I mean, this has been an issue with TDI, Volkswagens for many years way, many generations back. We serviced a lot of them where the intake ports would plug up so badly, by the time you take the intake manifold off, you'd be lucky to fit a quarter inch drill bit into the intake. There would be about that much breathing space in the port. They would be insignificant. So, there would basically be no airflow going into the engine, so you'd be going up a hill and the engine just couldn't suck the air into produce the power. Yeah, so that's basically what happens. Eventually, you just lose performance. I would say the Jeep, once done, will perform substantially better, even though it was probably reasonably good to begin with.
Mark: The whole idea of the swirl valve motor or having that secondary intake is when the engine needs ... You step on the gas or the fuel and are requiring more power, more speed captain, that opens and allows more air in to give you more power, basically, along with more fuel.
Bernie: Exactly, but I think a lot of the reason they use variable intake runners ... And they do it on gas lean engines as well, is it creates a certain ... They call it a swirl valve, because as the air's sucked into the engine, or, well, in this case, being a turbo charger, it's actually forced in, it creates a swirling motion. So, as it does, it improves the combustion process. As the air swirls in, the combustion is better, so it's more efficient, there's more power, there's better fuel economy, there's lower exhaust emissions. I mean, if you can burn the fuel 100%, the emissions are lower. Plus, of course, better economy and more power. So, depending on what speed the engine's running, if it's idling, it needs a certain amount of movement and flow, if you've got full throttle, it's a different situation.
Mark: Right. So, carbon deposits would obviously be a big problem in making that efficiently run properly, so is there a way to prevent these carbon deposits?
Bernie: Well, I have a couple of things to say, but I mean, first of all, I mean, the best way to prevent them with a diesel is to be running your diesel. Ideally, a diesel needs to be run hot, it needs to keep running all the time, and the people who will suffer the least amount of carbon deposits owning a diesel will be people who start their car up and they drive out on the highway for an hour and back, or they drive across the country. They do a lot of long drives with the engine cooking hot all the time. Like most us, you start your car up, you drive your kids to school, you drive home, or you drive to work short distances, that's when the carbon deposits start building up. So, usage is one thing, but of course, it would be kind of stupid to just go drive your vehicle out on the highway for a couple hours just to get to work.
So, you just got to work with what you've got, and this is why I've often said you should really look at ... Do you really need a diesel? I mean, the fuel economy is extremely attractive, but as the engines gum up over time, and it happens to all of them if you don't use it hot, you will pay a lot of money for maintenance to have these kind of things cleaned out and repaired and replaced. I mean, the other thought I've often had is why don't the manufacturers put a filter in the EGR system that even if you had to throw it away every 5,000 kilometres, it would just save so much of this kind of headache. So, never heard of one available. It's an interesting concept. Not sure how you'd ever put it in. Every 5,000 kilometres would be kind of an irritating thing to do because it would plug up pretty fast, but it just seems to me like that would have been a good idea to consider when building a lot of these diesels.
Mark: It just becomes part of your oil change, is that particulate filter gets changed too.
Bernie: Well, exactly. To me, it would just be a huge savings in terms of ... Yeah, in terms of maintenance, and extremely costly maintenance.
Mark: So, Jeep Grand Cherokees. How are they for overall reliability?
Bernie: I'm going to say fair. They're not the most reliable vehicles. I mean, we're talking about a pretty major repair on this one here. These diesels do have some issues, and there's front end work that ... Suspension, steering work that needs to be done on Jeeps, perhaps a little more frequently than some other vehicles. Gasoline motors are pretty reliable. I mean, these diesels are too, but there are just expensive jobs that need to be done every once in a while.
Mark: And a great off-road vehicle overall and comfortable to drive in.
Bernie: Oh, they are. They're awesome. I mean, people love their Jeeps, but just as I often say, people love certain kinds of vehicles, and you will spend more money owning a Jeep than you will on a lot of other cars.
Mark: So, if the benefits are there for you for off-road use or you like the Jeep, it's a good vehicle?
Mark: So, there you go. If you're looking for service for your Jeep in Vancouver, the guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment. You got to book ahead, they're busy. Remember, these guys are 19-time winners of Best Auto Repair in Vancouver as voted by their customers. 19 times. This is a good shop, so you've got to call and book ahead. They're busy. Or, you can check out their website, pawlikautomotive.com. You have hundreds of videos on YouTube, almost eight years worth of videos on there, and especially thank you for watching, listening to the podcast. Thanks, Bernie.
Bernie: Thanks, Mark, and thanks for watching and listening. We really appreciate it.
Mark: Hi, it's Mark with Top Local. We're here with Mr Bernie Pawlik doing the Pawlik Automotive podcast this morning. How are you doing this morning Bernie?
Bernie: Doing very well Mark.
Mark: So we're gonna talk about a Jeep Liberty this week, and you had to do an engine replacement. What was going on with this Jeep?
Bernie:The vehicle came to our shop.Towed in. Suddenly started running really rough and the owner had thought there was something wrong with the timing chain, so that's the process we took with the vehicle, looking at it.
Mark: And what tests did you do
Bernie: Well first of all, we went to see if we could start the engine, and of course scanned the vehicle for stored trouble codes, and we were able to start the engine. It ran really rough, but it did actually run and with the owners concern about the timing chain being a problem, we of course listened to see if there was a timing chain issue, and we couldn't hear any rattling or any noise of any sort. The engine was actually quite quiet other than it ran rough and there was a stored trouble code P0340 for camshaft position sensor circuit problems so we looked at things in that area.
Mark: And what did you find?
Bernie: Well we found, eventually, what we found was that the timing chain had broken but in the interim, it was an interesting diagnosis because the camshaft position sensor is located on the right cylinder bank and there isn't one on the left. A lot of newer engines would have two of them but this older engine just has one. And with that cam sensor code, it looked like it might be an electrical issue at first but we did verify it electrically as working. Eventually, we pulled the camshaft position sensor out, looked at it and we could see the camshaft itself was not rotating. So interesting that it would set that particular code with that description when it's not in fact a circuit problem at all, it's just that the sensor wasn't picking up a signal.
Mark: And why would the cam gear or the cam shaft not rotate?
Bernie: Well that's what we wondered and because I figured that this engine's actually running, it would be surprising that the cam would in fact not be turning. So we removed the valve cover and found that actually the timing chain itself was broken. Which explained a couple of things, the owner had said " I think it's the timing chain," and we ran it for a while, tried to verify it and couldn't hear a timing chain rattle because usually if there's a timing chain problem, there's always a noise, but finding a broken chain was a really unusual, an unusual find.
Mark: So that's not something that you see very often, broken timing chain?
Bernie: No, as a matter of fact, I can't even think of the last time I ever saw one. I mean timing belts will break because they're rubber and they crack eventually and break, but a chain, it's a piece of metal, it's very, very, tough and very robust. A lot of time the guides will break, the chain will jump teeth, but to actually have a chain break, I can't even think of the last time I saw one.
Mark: And so was there any other problems that were going on?
Bernie: Yeah, so, let's get into looking at a couple of photos here, here's our engine. This is the right cylinder bank with the valve cover off and you can actually see the timing chain. I've actually taken the timing chain piece out, this doesn't normally sit over here, it would be actually inside the engine. There's one piece of it, but this is why it was ... the rest of the chain is broken and stuck inside, but you can also see, there's supposed to be a rocker arm sitting here. It was actually lying loose, I just placed it here, but this rocker arm had popped off. So what we found had happened was the ... I'll just get the other photo here, the intake valve seat on cylinder number one had actually dropped out of position and this is a problem that happens on these engines. The valve seats will actually come loose and it jams the valve. It'll jam the valve in the open position, the piston comes up, smashes the valve and I think in this case, what happened is that this all happened probably in one foul swoop and broke the timing chain. So these arrows here, the red arrow ... Unfortunately this isn't the greatest picture; it's a smartphone picture, looking down at an intake port which is the valve's a couple of inches away from where the camera was taking the picture, but it's the best I could do with this camera. This is the intake value here, this piece where the red arrow is pointing. The yellow points to the valve seat, and the blue points to where the valve seat is supposed to sit. So you can see this thing here, this dark area here, is actually supposed to be up higher. So that kinda shows in a nutshell what happened with this engine.
Mark: And which engine is this?
Bernie: Yeah, glad you asked, it’s a 3.7 litre V6. It's an overhead cam engine, gasoline. We do work on a lot of these with diesels for some odd reason, but yeah this is a gasoline motor.
Mark: And so the valve seat's dropped out, so that sounds like a pretty serious concern.
Bernie: It is and it does happen on these vehicles from time to time, it's actually one of the flaws of this engine and also the 4.7 litre V8 which is basically the same engine only with two extra cylinders. So this is a common problem with that line of engine.
Mark: So that's pretty catastrophic and compounded kind of things. How did you repair this vehicle?
Bernie: So we ended up getting a good used engine for this vehicle. That was the cheapest way to go. Doing a full rebuild would be very expensive and far beyond the value of the vehicle. So we got a good used engine, and ran great after we put it in.
Mark: And I guess was the piston compromised and the cylinder and all that? Is that why that it was gonna be more expensive?
Bernie: Well in order to repair it you'd have to do the timing chains, I mean at the very least, the timing chains, get the valve seats replaced, and you'd wanna do it on both cylinder banks because if one's dropped out, there's gonna be another one coming pretty soon. So in order to do all that work, it would far exceed the cost of even replacing with a used engine and at that point ... we never took the cylinder head off and looked at what damage happened to the piston. To break a timing chain, who knows what else has actually gone on inside the engine, so it would be pretty expensive to fix.
Mark: So normally, how reliable are Jeep Liberty's in this kind of timeframe?
Bernie: Well, obviously with this podcast, you've seen some of the worst stuff that can happen, the drop valve seats, and we've actually seen this happen on other Liberty's and not had this kind of catastrophic failure, so it doesn't always result in this particular problem. But timing chains do wear on these things. Valve seat drop out, that's probably the biggest issue. They're not the most reliable vehicles, there's a lot of little things that happen to them; it's not a Toyota. Toyota always seems to be the benchmark I go back to, but they are pretty decent vehicle for off-road but they have this little nit-picky things that happen. The engines are not the most fabulous. There's diesels, we talk a lot about those on our podcast, and they have their issues too. Personally, I'd go for the gas motor, just definitely more reliable than the diesel in spite of these problems.
Mark: So there you go, if you have an older Jeep Liberty or a newer one, or any kind of Jeep, the guys to see in Vancouver are Pawlik Automotive. You can reach them at 604-327-7112. Get your vehicles maintained regularly and they will last longer. You have to call to book ahead because they're busy or check out their website, pawlikautomotive.com We're on youtube, search for Pawlik Auto Repair, hundreds of videos on there showing repairs of all kinds of makes and models of vehicles. Hopefully you're enjoying our podcast. Thanks Bernie.
Bernie: Thanks Mark and thanks for watching.
Mark: Hi, it's Mark. I'm here with Bernie Pawlik, Pawlik Automotive in Vancouver. We have doing the Pawlik Automotive podcast again. How you doing this morning, Bernie?
Bernie: Doing very well.
Mark: So, we're going to be talking about a Jeep Wrangler Unlimited that had a problem. What was going on with this vehicle?
Bernie: We'll start right with the vehicle and this is the vehicle right here, 2008 Jeep Wrangler Unlimited, and what was going on with this vehicle? There was a number of issues, actually. It came in for an inspection. We looked at a few. We looked the vehicle over, found a number of front-end issues, worn out brakes and a few things, but the primary purpose for this podcast is to talk about the front brake hose that was in bad shape. So, there is the brake hose. If you can see, this is ... so this is on the front of the vehicle. This is the shock absorber and the brake hose. This is a pretty close up shot. This brake hose runs from the frame of the vehicle up here, out to the brake caliper over in this direction off the screen. You can see this leaky stuff, this kind of gucky, rusty stuff and this split piece of rubber here, that is the brake hose that is about to explode. What's happened here is basically the metal has started to fester and losing its grip on crimping the brake hose. Basically, a lot of it just caused by rust. It's just corrosion that's expanded the rubber, torn it apart, and then eventually caused a leak.
Mark: So is that the main reason for a brake hose to deteriorate like this, rust?
Bernie: Well, this is one reason. We actually don't see that all that often around. We're in Vancouver. The weather is pretty mild here. We don't get a lot of road salt. This vehicle is from Alberta. There's a lot more road salt used in Alberta. The winters are harsher. And so, that basically ... the salt and moisture just ends up creeping in behind this piece of rubber here which is sort of that ... there's an protective shield, kind of creeps in there, sits in there over the years. It's 10 years old. It just eventually starts to corrode the metal, it expands. As I said, it would ... it just loses its grip on that. It's a high pressure crimp on the rubber hose.
Mark: And so, is this like an accident that's waiting to happen?
Bernie: Absolutely. I can't say enough. We often talk get your ... I mean, we often tell people get your vehicle inspected once a year. I mean, not you own a vehicles only two, three, four years old. It's probably not that necessary. But once it gets on in age, really necessary to have a vehicle inspected every year because you never know what's ... what you're going to find next year even though things can be fine now and you may only drive 5,000 kilometres, there's ... things happen over time, things deteriorate, rust and corrosion just starts to get into places and it'll start working its way through stuff. So, what looks good now, even a year later, even if you don't drive a lot can often amount to problems. So this is why you always need to have an inspection because you'll never see this until it breaks and seeing an accident waiting to happen, when a hose like this breaks, usually it's fine until you hit the brake really hard which is a panic stop, usually. And then I'll assume the hose just bursts because the pressures too high. That's that's when you do not want your brakes to fail. This is when it will.
Mark: Again, this isn't something you find all that often?
Bernie: We don't find this all that often around here. I'm certain that if you ... place like Alberta, Eastern Canada, the US, places where there's lots of road salt, you'll find this kind of stuff, this kind of corrosion happens a lot more often. We do find brake hoses wear, they tend to crack and that ... that's kind of the wear we find here, but that usually takes at least 10 or 15 years before that kind of thing happens. Again, that's something we can spot on inspection it and fix. But this is almost more serious because if the failure can happen almost faster then it was just ... it's got a crack in it.
Mark: So there are a few different models of four-door Wranglers. What are the differences?
Bernie: Well, mostly, I mean, there's some more different trim packages but the main difference ... like this is an Unlimited Wrangler, some of them have cloth seats. This was really nice. It had leather seats and really, really nice interior in it. But the main difference in the upgraded model is the Rubicon which is kind of cool. It's got locking differentials, like they electronically lock the differential. So, this is ... that vehicle is a true four-wheel drive. Once you lock it all in, it's ... all four wheels are pulling you whereas most four-wheel drives, you're kind of got, posy in the rear-end, you've kind of got a three-wheel drive, but this is like a true four wheel lock drive. So you can really go ... you can really go places. So it's a pretty cool vehicle, little more complex, a lot more stuff to go wrong and things do with the differentials. But other than that, that's kind of the main difference, Rubicon or the sort of not Rubicon.
Mark: Not Rubicon?
Bernie: Well, it doesn't say not Rubicon, the plain Unlimited, the more base model. They still all go well out in the bush but the ... if you really want the best, get the Rubicon.
Mark: What other issues do you see going wrong with Jeeps?
Bernie: We work on a lot of them. I mean, a lot of front-end, the steering linkages wear out, which we replaced in this vehicle, ball joint, steering linkages. I mean, brakes wear is normal as you'd expect. There's more fluid services required because it is an all-wheel drive utility truck type vehicle. So, there's extra differentials and things that need service. People often drive them in harsher climate. So when you do that, more work need to be done and a few cooling system repairs here and there but other than that, they're pretty good.
Mark: So there you go. If you're looking for service for your Jeep or you have some concerns about having imported a car from Eastern Canada and maybe you need to have the brake hose checked, the guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment or check out their website pawlikautomotive.com, hundreds of articles and videos on there, or the YouTube channel which is the same, five-plus years of videos on there, or our new podcast on iTunes. Thanks, Bernie.
Bernie: Thanks, Mark.