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2008 Volvo XC70, Power Window Repairs

Mark: Hi, it's Mark from TLR. I'm here with Bernie Pawlik, Pawlik Automotive in Vancouver, BC, Canada. Vancouver's best auto service experience. 23 time winners, 23 time winners of best auto repair in Vancouver as voted by their customers. And we're talking cars. How are you doing Bernie?

Bernie: Doing very well. 

Mark: 2008 Volvo XC70 had some sort of power window problem. What was going on with this Volvo? 

Bernie: Yeah, so our client brought the vehicle to us the left rear power window. Wasn't working also the door lock as well. And there were occasional times when it would work, but most of the time it wouldn't. So that's the issue we faced. 

Mark: So what kind of testing and diagnosis process did you go through? 

Bernie: Well because of the kind of car with modern computer technology, we hooked our scan tool up and we looked to see what sort of signals we're getting from the various switches in the vehicle. And from the drivers main switch, we could see in the computer that all commands to the power windows were as they should be and what we expected, but the window wouldn't work. And there's bi-directional control. So we were able to operate some windows, but we couldn't operate the left rear window through that control. 

Mark: So digging into this now, how did you go a little bit further?  

Bernie: So what we would do in any older car, without computer system that is pull the door panel off the left rear door, start testing the wiring. Inside there's a, it's a pretty complicated setup. I mean, there's your basic power window motor and door lock actuator. Like you'll find in any car that's been built in the last 50 years, but what is more complex is there's a door module. There's a module and every door a computer sends a signal from the body control module. When it gets a signal from, whichever switches, it gets processed through that computer and that will send the signal to the motors to actuate it. So that wasn't working.

So we had to do some testing on the wiring and the area that we tested, we test for basic power and ground. All those were present, but the one area that we started focusing on us, it's called a LIN bus system. It's a computer bus system, the communication system between the computers that control a window system.

So those were the next series of tests that we did because clearly that issue wasn't getting the proper signal. From somewhere. Either by broken wire, defective module or something in that area. 

Mark: So, how do you test the LIN bus system?

Bernie: Well, we use a lab scope and I'll show you some testing. We'll just do a little picture show here. You should see a picture of a nice silver Volvo.

2008 Volvo XC70, Power Window Repairs
2008 Volvo XC70, Power Window Repairs
2008 Volvo XC70, Power Window Repairs
2008 Volvo XC70, Power Window Repairs
2008 Volvo XC70, Power Window Repairs

So this is basically on a lab scope. A lab scope is basically, it tracks time and voltage, and you can see at this point, this is a zero volts. This is 12 volts, and somewhere around little under 12 volts, maybe 11, is the highest voltage you get. And about one volt is sort of the bottom end. And this signal will switch. Back and forth in various patterns. But it's key to have these fluctuations. 

Now what we were getting when we hooked our test probe up to the LIN bus wire on the left rear module is it is basically stuck at 10 volts. It's just a solid line going across the screen. Obviously a problem. So we pulled the driver's door panel off where the door module is, and we found it, it had this signal that we're looking at here. We unplugged the other door modules to make sure there wasn't anything going on there. There was no signal coming from the LIN bus system to this door module, probably a broken wire somewhere along the lines. So that's kind of how the diagnosis goes. It's time consuming. That's basically what we found. 

Just kind of an idea here. This is a wiring diagram. I always show these because I really like people to know the complexity of what we're dealing with with a car. It's not just a matter of let's plug our scan tool in, Oh, there's the problem. You know, here it is, let's fix it. This often takes a few hours worth of dedicated time to fix these issues.

So this is just one example, but this is the left rear door module. You can see there are about 20 wires going in and out of this. Powers, grounds, signals, power to the motors, power to the power door lock. And in this one, wire that I've circled here. It says computer data lines, that's the LIN bus line.

This is where it's supposed to get that fluctuating signal, which it was not. So those was our diagnosis. So you probably wonder what did we do next? 

Mark: What do you do next, Bernie?

Bernie: So we kind of figured, at this point, you've got to kind of think, well, where would the most likely chance of a broken wire be? And it would probably be the driver's door because that gets opened and closed more times than anything. It gets the most exercise and gets the most wear. So we start pulling wiring apart part that went into the driver's door through the door jam and we found a broken wire. And here's a couple of pictures.

So the red arrow points to our broken wire here, which is part of this connector, main connector to the driver's door. And finally, one more shot again. You can see the wire broken. Yeah. So we basically repaired the wire, soldered, heat shrunk, extended it. We do whatever we need to do to make sure it's reliable and will last for another 10 15 years. And that's basically the repair done. After that everything came back to life in the rear door.

Mark: Essentially the LIN bus, that your scan tools, when you're checking things are going to point in a general direction most of the time. Without being very specific about, okay here somewhere in these miles of wiring, literally miles of wiring in the car, hidden in all kinds of cavities all over the place. There's a problem in one of these somewhere. It'll tell you perhaps which one, but it won't tell you where. Is that right? 

Bernie: Yeah, absolutely. The scan tool really is just a direction of where to go for repairs. And interestingly enough, I mean, we have a tech support team with the scan tools we have, and we will often call them or send a data file in saying, Hey, here's what's going on. Have you got some thoughts or suggestions. Because most of these things we find are first time repairs, and there's a whole team of people that we have. So when you come to us, you've got that backing of a lot of experience. You know, which is what you get at either dealership, manufacturer level on some of what we have is probably even better.

But anyway, so we sent the file off with these particular trouble codes that we obtained out of the computer and the tech rep who is helping us suggest that it probably was a module because that's almost always what goes wrong. Well, you know, if we just go, let's just change the module, we would have wasted the customer's money and been doing more diagnosis for free.

So from there it just gives us a direction to understand how the circuit works and the information, and then we can go from there. So, you know, some repairs are simple. A lot of them are not, I think it's just important to know that  when you have something that's going on in your vehicle. 

Mark: And plus part of it's experience, like being able to know that, Oh, the rear window isn't working, let's just tear the rear door apart. And then maybe we'll find it kind of the guess and by golly method of diagnosis, which you don't use. No, we don't use. Basically a more thoughtful, true problem diagnosis way of finding the actual issue. 

Bernie: Yeah. It's very important to do that and follow a structures and procedures and that's the best way to find the issue and sometimes you go, okay, well let's just start at where it's most probably a problem and which we did the driver's door and that's where it was.

I mean, we could've started tearing the wiring apart at the rear door and through the rest of the vehicle, but it's, again, it's like probabilities of where are things going to happen? You know, the other area, when we find a wiring issue on a car, we'll often ask a client, Hey, has this car been in an accident recently? Or do you know anything about an accident history? Because again, wires don't normally fail for no reason. They're pretty durable. They could last a hundred years, but sometimes there's a reason. 

Sometimes it's the way something's manufactured, but when there's something that moves, it's in a spot where something is moving. That's where a wire can often be faulty. Or if there's been a collision and you know, there's been repairs done and maybe it hasn't been done properly or, you know, we see that a lot. So it's all about asking the right questions too. 

Mark: So after the repair, everything worked fine?

Bernie: Yep. Windows good, door locks fine, everything back to normal. And so really, I mean, it was a time consuming repair and costly in that manner, but you know, no expensive parts were required. These door modules are expensive. They often require reprogramming on Volvos, which I don't know why, but they do.

You have to program the module for the door. Even if you change the driver's door switch on a Volvo, you have to reprogram the computer for the door switch on many models. So it's kind of crazy and it's not, you think why, but the way it's built.

Mark: And how are these  XC70 Volvos for reliability? 

Bernie: Well overall, I'd say pretty good. This car has got over 200,000 kilometres. It's a 2008. So what's that make it, 13 years old now, you know, that's a fair bit of mileage. One thing we did find as there was some oil leaks on the engine, which looked to be probably a major repair. If the owner takes that on. They're not severe leaks, but we have done the rear differential on this vehicle. 

You know, they're a bit of a quirky design vehicle. They're a little more expensive than average to fix, but overall, a pretty good car. I think sometimes when you give a car time to age out and you can kind of see whether it's good or not. And I think these are pretty good cars. Just expect things like the rear differential. If it hasn't been done, you'll be doing it.  

Mark: They do a lot of differentials, rear differentials for Volvos and Land Rovers. If you need some service for your Volvo in Vancouver, the guys to see are Pawlik Automotive. You can reach them at (604) 327-7112 or check out the website. pawlikautomotive.com. You can book online there now. Or check out the YouTube channel. Pawlik Auto Repair. Hundreds on both of those places. Hundreds, not exaggerating. Over 500 over almost 600 videos, almost 700 I think. Videos all makes in models, types of repairs. We've been doing this for nine years. There's a ton of stuff.  Thank you for watching and listening. We really appreciate it. Thank you, Bernie. 

Bernie: Thank you, Mark. Thanks for watching. Thanks for listening.

2006 Volvo XC90 – Catalytic Converter

Mark: Hi, it's Mark from TLR. I'm here with my good friend, Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver's best auto service experience. 23 times. I might even have some news about that. 23 time winners of best auto repair in Vancouver as voted by their customers. We're talking cars. How are you doing Bernie?

Bernie: Doing well. 

Mark: So 2006 Volvo XC90 had a catalytic converter problem. What was going on with this  vehicle? 

Bernie: Yeah, so the vehicle came to our shop. Customer had a few concerns. One was a rattling sound in the exhaust system. So yeah, that's basically the bulk of it, but that was the biggest concern.

Mark: So what kind of diagnosis inspections did you do? 

Bernie: Well, because this client was new to us and they had a number of concerns besides the rattling and exhaust. We did a comprehensive inspection. So it's a full vehicle inspection and then looked at the exhaust. We could hear the rattling sound.

We basically do a visual inspection to see if there's anything loose, you know, wiggle things around, sometimes we'll use rubber hammers on things. Variety of things sometimes just running it with one person in the vehicle, getting the right speed or, you know, until cause of vibration, this is what we do. We have different listening equipment, whatever it takes. And what we found is that the catalytic converter had a rattle inside, internally. 

Mark: So how does, leaving aside the fact that you're using rubber hammers, which my wife likes to use on me. How does the catalytic converter rattle internally?

Bernie: So what happens is the way catalytic converter, it's basically got a shell body. We'll look at a picture in a minute and inside of it, there's this it's like a sort of metal honeycomb grid, it's all welded together, very compact. And usually there's some kind of fireproof lining that goes around that.

And eventually over the years as cars, you know, it's 15 years old, it's got a fair number of kilometres on it. Things will rattle around. Sometimes people will actually hit them depending on where it's located. They might bottom out and hit it. That wasn't the case with this vehicle. But sometimes if you were to hit the converter, you know, hard to say on a rock or something, or go over something that could cause it to come loose. Sometimes just over time, the metal expand and contract, expand and contract over the years, happens a lot. You know, eventually things will kind of get loose and start to shift around inside. 

Mark: So, how does that affect the performance of the catalyst in the converter? 

Bernie: Well, it eventually will degrade the performance because the exhaust, to be effective of course the exhaust has to flow through the substrate with all the precious metals causing a chemical reactions with the exhaust.

And so any exhaustive bypasses that, which it can eventually, especially if the rattle gets severe, will definitely degrade the performance of the converter. And you'll know that because the check engine light will come on, at least on a converter of this age, because it's anything after 1996, the converter is monitored for its efficiency. So that hadn't happened yet on this vehicle, but it certainly would at some point. 

Mark: So, are there other reasons, other than someone's stolen it, that catalytic converters require replacement? 

Bernie: Well, it's funny you talked about the stolen one, cause I was going to talk about that, but let me just share a picture for a second while we're talking about that.

There's our 2006 XC90. Still in good shape for a 15 year old car. 

2006 Volvo XC90 - Catalytic Converter
2006 Volvo XC90 - Catalytic Converter

And there's the catalytic converter assembly itself. So you mentioned stolen. So these things, on this particular vehicle, this part of the flange just sits against the turbocharger. There's a flexible pipe. And this is actually a failure item on a lot of exhaust systems will cause loud exhaust, and we can usually replace these. We can buy the flex couplings and weld a new one in. 

There's the catalytic converter right there. That's the body of the cat. And inside is that substrate. This one is located under the vehicle and people will slide under there or jack it up or whatever means they have with a SAWZALL, like a portable reciprocating saw. It's nice and easy to do nowadays because there's so many battery options available, and they'll just slice it out and you'll get out one morning, start your car. And it's super loud and catalytic converter's gone. 

But other reasons for failure is basically, you know, they're not supposed to ever wear out, but they will wear out eventually. And it's just when, who knows. I mean, I had a 2001 suburban I sold last year, had almost 400,000 Ks. Cats were still original and working fine. As I say, you, you just don't know how long they'll last. You know, a lot of times, they might get hit if they're underneath the car or the substrate will work loose and rattle. So those are really the reasons they'll need replacement.

Oh, we'll give another thing. They can get plugged. You know, if you have an engine that's misfiring, often the check engine light will blink. That's something you really need to fix. A check engine light that's on solid is fix it soon. A check engine light is blinking. That's a serious concern.

It indicates a catalyst damaging misfire. What happens is, an engine misfires it dumps a lot of raw gasoline down into the cat. It gets very hot and it will actually melt the substrate. So that's another reason for replacing these. They'll get plugged, you'll lose power. And that needs to be repaired.

Mark: So the chemical reaction that's taking place in there with the platinum, and I don't know what else is in there. 

 Bernie: Palladium rhodium platinum. Those are usually the materials. 

Mark: I was going to guess that. Okay. Sorry. They react with the exhaust gases and pull the pollutants out of the air, basically. So the exhaust is cleaner coming out of the tailpipe?

Bernie: Yeah, essentially that's what they do. They take any excess hydrocarbons, carbon monoxide and oxides of nitrogen. They basically convert that into CO2 and water. That's basically the ideal reaction.

So we're basically pumping more CO2 into the air. But less harmful noxious type of pollutants. You know, that cause other diseases. Like carbon dioxide and oxides of nitrogen are particularly bad hydrocarbons. 

Mark: We're getting rid of the kill you now stuff. But increasing the kill you later stuff.

Bernie: Exactly. Exactly. And we're doing a really good job of that because it's amazing how little of those other pollutants really come out of a tailpipe of a car that's been built in the last 20 years. 

Mark: So what kind of replacement options are available for this catalytic converter on a Volvo?

Bernie: Well, there's a couple. There's an aftermarket pipe and catalyst assembly. We sometimes will do custom work where we'll actually weld in a really high quality universal converter or you can buy a new converter from the dealer. We've talked to the customer with different options.

In this case, we actually went with the dealer converter. This is  actually an OEM Volvo catalytic converter. So the OEM converters cost a lot more money generally than the aftermarkets, but they are much better. They have a full catalyst load in them. And which is why they cost a lot more money.

You're not just paying for the name because it's from Volvo or from wherever you're buying. It actually is the best quality unit you can buy. But often the price can just be enormously expensive, but in this case, it was a lot more, probably about $900 more to use this dealer converter over an aftermarket. But clearly this will last for, if these people keep this car for another 15 years, which is doubtful ,it'll last for 15 years. Unless you have a misfire problem which can wreck the catalytic converter pretty fast. But as long as you keep the car in good running shape, it'll last definitely for the life of the vehicle if these people will keep it for. 

Mark: So is it possible to buy a used converter? And would that be a good idea? 

Bernie: Well used is a bit dicey. You know, I've actually seen auto wreckers that won't sell catalytic converters. I remember there's one said, you know, federal law won't allow us to sell one, which seems kind of ridiculous. And that could be an American thing. A company that used to be American company that used to sell a lot of used parts here, but we have bought used converters. We rarely ever do that because it's kind of risky. You don't know how long it's going to last for, and you don't know if it's going to be any good until you actually install it in the vehicle. 

I mean, we can bang with a hammer and make sure it's not rattling, but you don't know whether it's plugged or whether the efficiency is low until you actually install it. So it's a very risky item to do. You know, if you do it and it doesn't work, then you've got a lot of labor to pull it back out again, to fix it.

Mark: And probably now with the price of palladium, rhodium, platinum, that why people are stealing catalytic converters. A lot of wreckers aren't going to be selling the converter because it can get more money by recycling the precious metals. 

Bernie: Well, no, I would say that you could still, it's still worth more money as an intact item. I mean, if you consider a lot of auto wreckers, some of them have a, there's sort of a policy of selling it for half the price of new.

So I mean, this converter could, you know, they could potentially sell this pipe for six or 700 bucks or more even if someone would pay that for it. But then, you know, that's almost approaching the price of an aftermarket new converter. So you think, well, which way is worth it.

And if it only has a 90 day warranty, it's kind of hard to legitimize, but  I mean as a piece of scrap metal, that catalytic converter is probably worth a hundred bucks.  

Mark: There's gotta be an easy way to make a living. So how many kilometres run this vehicle? 

Bernie: Yeah, so this vehicle had about 277,000 Ks actually. So it was quite up there. Ran really nice.

Mark: So how are XC90s overall and how are they for reliability? 

Bernie: Pretty good vehicles. You know, we've talked a lot about Volvos over the years. Certain quirks rear differentials wear out. They do have some transmission issues and some model years, the drive belt system on some of these is rather strange and expensive to fix, but overall I'd say they're pretty good.

And I think sometimes you have evaluate a car, you know, it's 277,000 kilometres it runs great. You know, needed a few thousand dollars worth of repairs, including this converter, but now the car is in good shape and it'll go for quite a while, I would say without any further issues. So, you know, overall a good car, but you will spend more money on these to fix them, but it is a, you know, kind of a top level European SUV vehicle. Good safety and comfort, creature comfort. So there's more to go wrong, a little more expensive to fix, but definitely a decent vehicle. And I think this one's proven itself over time with the mileage on it that it's a pretty good car. 

Mark: If you're looking for service for your Volvo in Vancouver, BC, Canada. The guys to call 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. Check out the website. pawlikautomotive.com. You can book your appointment there. They'll call and confirm everything with you ahead of your appointment. 

Or check us out on YouTube. There's hundreds of videos on there about all makes and models over nine years worth of doing this. Pawlik Auto Repair. And of course, thank you so much for watching and listening. We really appreciate it. Thanks Bernie. 

Bernie: Thank you, Mark. Thanks for watching and listening. We really appreciate it.

2000 Volvo S80, Electronic Throttle Replacement

Mark: Hi, it's Mark from Top Local. I'm here with Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver's best auto service experience and 22 time winners, still blows my mind 22 time winners of best auto repair in Vancouver as voted by their customers. And we're talking cars. How are you doing Bernie?

Bernie: Doing very well.

Mark: So a Volvo S80, a 2000 model. So a little bit of a older in the tooth kind of vehicle that had an electronic throttle that had to be replaced. What was going on with this vehicle?

Bernie: Yeah, so the car came to our shop. The owner had said that the vehicle would accelerate, basically the throttle, well, at least that's what it felt like, the throttle wasn't moving. He'd actually taken it to another shop. They suggested that the electronic throttle module needed to be replaced. He wanted a second opinion and wanted us to look at it. So we did it. 

Mark: And so okay you had a look at it, what did you find?

Bernie: So of course we basically proceeded to do some diagnostic tests. I want to start with some pictures and then just explain the diagnosis. Of course, the first thing we do is something like that is verified a concern. I started the vehicle, I looked at it myself, started the vehicle. And we got in the vehicle and verified the concern. It started ran fine, but when you, as soon as you accelerate, the engine wouldn't rev up at all. Hooked up our scan tool and found a nice variety of codes here.

2000 Volvo S80, Electronic Throttle Replacement
2000 Volvo S80, Electronic Throttle Replacement
2000 Volvo S80, Electronic Throttle Replacement
2000 Volvo S80, Electronic Throttle Replacement
2000 Volvo S80, Electronic Throttle Replacement

So these are the stored trouble codes in the vehicle computer, engine computer. Five codes. And you see, they're all basically showing you electronic throttle, module communications, internal faults and right there, that pretty well tells you that there's a problem with the unit.

Although there could be other things, and this is why we don't just go, let's just change the part. There's things to verify, like is the wiring good, because a bad wiring connection or no power to the unit can cause all these things. So these were the codes we got initially. After looking at these codes, I cleared them and this code came. Restart the engine. This code came back immediately, electronic throttle, module communication fault. So, proceeded to test the wiring, make sure it was good. And then verify the throttle to module was in fact that.

Mark: So what's involved in replacing the part? 

Bernie: Well, it's a basic bolt in and bolt out item, but there are a couple of issues with it. So here's a picture of the throttle module. It sits underneath the intake manifold. It's a little bit of a weird thing to access. And the wiring is kind of buried in under the engine. This is the wiring connector here. This is the throttle plate here. That is electric motor and a number of sensors on each side of the throttle module. 

What's involved in replacing it and it depends on where you buy the part, if you buy directly from Volvo, well, or perhaps some other sources, you actually have to reprogram the vehicle to the car. It's a bit of a pain. Volvo reprogramming is not quite as easy as a lot of other vehicles. If you have the factory Volvo, if you're at the Volvo dealership, it's easy, but in the aftermarket world, it's a bit more complex then a lot of other vehicles that we work on that we can easily reprogram. We found a supplier that rebuilds these units, really reasonable price. And they come preprogrammed. So they're just plug and play, which is just a really awesome option. So that's the throttle unit. 

What else do we got here? just a little comical photo of the scene. Like seeing looks like a camera. So, it really, it's really funny. It really does look like a camera. I don't know why, no other throttle, electronic throttles look like that. 

And there's a picture of our car, which is really nice shape. We'll talk about that a little more, but for a 2000 model year, this probably looks like it just rolled out of the showroom. So kudos to the owner for taking good care of it.

Mark: So why do they use an electronic throttle and I'm assuming that this was something that was fairly common in vehicles? 

Bernie: Yeah, it's very common nowadays. Actually in 2000, this is actually one of the earlier cars that use electronic throttles. The reason they use them as is there's a lot of things that can be controlled, like, especially emission wise with a throttle opening. And that's really, I think that's probably the main reason why they use electronic throttle is that they can close the throttle and with electronic engine controls the revving of the, it used to be the throttle would basically control the speed of the engine, but the speed of the engine, it can be controlled a number of different ways by, you know, varying the ignition timing, fuel injection time. There's all sorts of things that can be done with variable valve timing engine as well. You can adjust the valve. There's a number of things that can be done that affect the engine speed. So what they found is, you know, if they close the throttle at a certain time, it actually reduces the exhaust emissions enormously.

So it's probably mostly there for that. And you know, again, this is what electronics allows, you know, full controls over other things you can control things in a pure mechanical world couldn't be done. So I don't know if there's an engine you can buy nowadays, you know, like a 2020 model car that doesn't have electronic throttle. As the two thousands progressed more and more cars had that so. 

2001 Suburban, it doesn't have one, but if you look at a 2004, they have them. So they just start adding them. It just makes sense. But it's a more expensive part to replace especially on a car like this Volvo. 

Mark: Is that because it's underneath the intake manifold? 

Bernie: Not really and I say underneath, it's not, I mean, truly underneath. It just mounted below, the way the Volvo is mounted, it just makes it underneath. But, sometimes I think of underneath together, like a VA with a throttle under, that can make it really tough. But, it's not really that, it's actually the price of the part. And this part, I believe I didn't actually price it all out myself, but I believe a new one from Volvo was like 2000 bucks. We've had Jaguars with failed units like this are $3,000. We have a source that we can get them for much less money rebuilt you know, and they work really, really well. So I wouldn't spend the money on a new one. It's just a crazy amount of money, but yeah, a lot of import cars are very expensive. And then for something like I don't know, it's your average Ford sedan, then there's a lot of aftermarket options available for those. And they're much less, you know, in the $500 range, sort of the price I'm thinking of. But they do fail from time to time. Some cars will last pretty much forever, other cars they'll fail a little more frequently. And this is a common failure part on this Volvo. They fail early and they extended the warranty on, I believe it was up to 10 years. I could be wrong on that, but, this car is 10 years beyond 10 years old. So there's no warranty left on that. 

Mark: So with the labor and the more expensive part, this is a medium to really expensive kind of repair then possibly. 

Bernie: It is. It's not cheap repair, but again, you know, we've got a source, for really good remanufactured units that are much less like, you know, substantially lower than the price of the dealership. So at least it's more reasonable and you don't have extra costs and hassle too. 

Mark: Of course. So how was the S80 after you replaced the part and tuned everything up? 

Bernie: Yeah. I ran really nicely and as you can see from the picture of the car, it's a beautiful car. It's really good shape. I don't think it even has a hundred thousand kilometres on it, so not driven much, obviously garage kept and, yeah, very nice car. Really good shape for a Volvo of that age. 

Mark: If you're looking for service for your Volvo 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 always busy. They're always popular. They're always fixing stuff. Check out the website, pawlikautomotive.com or the YouTube channel Pawlik Auto Repair, there's hundreds, literally not exaggerating hundreds and hundreds of videos of all makes and models, all kinds of repairs. We've been doing this for eight years already. There's a lot of stuff on there. So check it out. Thank you so much for listening to the podcast or watching. We really appreciate it. If you like it, leave us a review. Thanks Bernie. 

Thanks, Mark. Thanks for watching.

2009 Volvo XC70 Engine Mount Replacement

Mark: Hi, it's Mark Bossert, producer of the Pawlik Automotive Podcast, we're here with Mr. Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver's best auto service experience. 20 time winners including this year again. 20 time winner's of Best Auto Repair in Vancouver, number one, as voted by their customers and, of course, we're talking cars. How are you doing this morning, Bernie?

Bernie: Doing well.

Mark: So, 2009 Volvo XC70, it's probably pretty close to the introduction year of these cars. What was going on with this vehicle?

Bernie: Well this vehicle was brought to our shop with an amazing drive noise while the engine was running and driving. Like, I say amazing, sadly, I didn't record it because it made some of the most horrific noises I've ever heard come out of a vehicle.

And, the noise would happen when you put it in drive, you accelerate, it would make this horrible scraping, vibrating, rattling sound and, it would just disappear once you hit a certain speed. And, it was perplexing, to say the least, to try to figure out what it was because it just incorporated so many sounds of motion and vibration and, things. So, that's kind of the main, that's the main reason it was brought it, I mean, it sounded like the sky was falling in, it was pretty horrific.

Mark: What tests did you do to find the concern?

Bernie: Well, of course, road test is the first start to try to get a sense of what could this be and then, second, of course, is a hoist inspection to look underneath the vehicle at suspected areas and, we have stethoscopes and listening devices where we can listen to different components. But, what made this diagnosis perplexing is that we couldn't see anything under the hood or even, once you pop the hood, the vibration could be heard inside the car but you'd never hear it outside, you couldn't hear it under the hood.

So, we listened with various stethoscopes in different spots, tried to emulate the noise. What we did notice is, if you put it in reverse, the noise seemed to be there and then, when you put it into park, the noise would be there but, if the vehicle would roll back in park, the noise would disappear.

And so, we started suspecting it could be an engine mount issue, that seemed to be kind of the most likely candidate. And the thing with an engine mount is, it, in and of itself isn't going to make any noise but, what it will do is, if it's collapsed or, somethings happened to the engine mount, it will transmit all the noise from the drive train into the vehicle. So, it can do that in a lot of strange and weird ways.

Mark: And how did you eventually find the culprit?

Bernie: So eventually so, again, suspecting an engine mount we, you know, jacked the engine up and visually inspected the mounts. Of course, the mounts, a lot of them are buried. What we did find there so, the Volvo has basically four engine mounts. It has one on the right side, that's the main engine mount, which is sort of buried, a little hidden. It has a transmission mount on the left side. Again, very buried and then, it has two torque mounts and, most of those torque mounts have been replaced, one sits on top of the engine, the other one sits underneath. Both of those were clearly in good condition and, the top one was definitely nearly new.

So, it got to the point where, based on symptoms and what we experienced, we said, "It must be a collapsed engine mount." So, we actually removed the drivers side engine mount and, that's where we found the issue. We may as well just get right into pictures because, that's where the interesting stuff is.

2009 Volvo XC70 Engine Mount Replacement
2009 Volvo XC70 Engine Mount Replacement
2009 Volvo XC70 Engine Mount Replacement
2009 Volvo XC70 Engine Mount Replacement
2009 Volvo XC70 Engine Mount Replacement

So, there's Volvo XC70, nice youthful, practical wagon. I always like to say something good about every car we work on. Anyways so, engine mounts. So, there is the engine mount that we removed from the vehicle, you can't see a lot from this view but, this basically, this section bolts to the vehicle and, this part here is where the engine mount bracket bolts down to the mount. So that's the old mount. Here's a comparison. This is an old and new.

So, this is the original mount now, you can see that tab that we showed, can you see how low that sits compared, this is the new one? This mount had collapsed and that's where the noise was coming from but, it wasn't evident when we looked at it because it was, again, buried and hidden and, sometimes when you jack an engine up you can put a floor jack under the engine and jack it up, the engine will jump up and lift or, there's way's we can test engine mounts and, nothing showed up as obviously a bad engine mount.

So, that's what took us a while to figure it out, until we actually ... So, sometimes you actually have to go, "Okay, this is what we suspect" and, take it a part and it's very evident here where you can see that different heights of the new mount.

There's another view of the mounts. Again, you can see the, see this mount clearly is collapsed compared to this view of the new mount here. And then, then the ...

Mark: What's actually collapsed there? What's inside the black ...

Bernie: So, there's actually rubber and oil inside these mounts. Now, it used to be that an engine mount was simply one piece of metal on each side and, a piece of rubber in the middle but, what they do with a lot of these modern engine mounts is they actually fill them with oil because it provides an additional cushioning and, sometimes you can actually see oil seeping out of an engine mount which is pretty clear evidence that its worn out.

But, what's collapsed is the rubber, I guess the rubber collapses over time and then the oil can leak. Well, this one wasn't leaking but, I actually ended up sticking on my took cart, upside down and it actually leaked out a bunch of oil.

But, essentially the rubber just collapses over time and, there's a few items that will fail. There are some engine mounts that actually have electronic controls to them too and, I don't even, I haven't even studied, really, how they work, I'm just sometimes perplexed as a complexity that we have in our cars. Like why do you need an electronic ... Seem like when a rubber mount just worked fine but, that's why we get the smooth riding cars that we do and, you know, when everything works well, you can't even feel the engine in the car but, when it fails, it's noticeable.

Mark: So we have another picture on the screen with an arrow on it.

Bernie: The metal, yeah.

Bernie: So, this here is, this is where the engine mount, that top piece, the one that was collapsed, this is sort of an underneath view, this is the bracket that actually bolts up to the engine and the engine mounts in turn bolts to this bracket through this hole here.

Now, the arrows pointing to this little worn piece of metal here. Again, you know, I feel bad, I've presented a couple of bad photos, I should check my work a little more before I do this.

But, anyways, you can kind of see a little discoloured spot and, that was basically where the edge of the engine mount was rubbing against this metal bracket. And, that's where a lot of that noise was happening. It's basically transmitting the noises of the engine and the drive train right through the body of the vehicle and, causing all that noise.

And, actually, if I look at this picture here, oh yeah, right here you can actually see a worn spot here so, that's where that little piece of metal was rubbing against that. So that was the actual cause of the issue.

There we have it, pretty straight forward in the end but, it just took a while to take things apart until we could see it.

Mark: How was the mount on, the main transmission mount on the other side?

Bernie: Well, we never replaced it. Again, it was quite buried, I suspect, probably based on age, it wouldn't have been a bad idea to replace it but, you know, the costs of the repairs got up there and, we replaced this and it solved the issue completely.

So, for the time being, we'll leave that mount but, a lot of times, with engine mount repairs, with vibrations and engine mounts, some things are not so noticeable and often, it's worth just replacing all of them, even thought it can be a very expensive job, just replace them all because it deals with the issue. Sometimes it's hard to pin down which one it is. In this case it was pretty obvious.

Mark: Were there any other issues with this vehicle?

Bernie: Well there was, nothing related to this but, we did notice the water pump was leaking so we did replace that at the same time. This is one of those 3.2 litre, six cylinder engines that has the, I know we've got a couple of features on these, it has the drive belt and accessories mounted in the middle of the engine over the top of the transmission. It's a good space saving way to do things but, it's certainly makes for expensive and time consuming repair.

So the water pump, instead of being located on the outer side of the engine, is located in the middle, its on the inner side of the engine near the transmission. So, there's a lot of stuff to remove, it's a pretty complex repair but, it was done and, fixed.

Mark: So this is a 10 year old car. How are they for repairs and reliability?

Bernie: They're pretty good but, there are a few things. I mean, you know, we've done a lot of features on the rear differentials, the pinion bearings wearing out, that's a guaranteed repair you'll have on one of these cars if you keep it long enough or, buy it at a certain age.

We're running into issues with the drive belt mechanism too, you know, things like water pumps and there's pulley's and a variety of things in that area but, overall, they're a pretty good, decent, reliable vehicle, they're just, you know, they are complex and they can be expensive to repair. So, just keep that in mind.

But, you know, you are buying, you know, it's a nice quality vehicle, it's a good drive, Volvo safety, economical and it's all wheel drive too so, it will get you wherever you want to go in the harshest of conditions, good ground clearance too.

Mark: So there you go. If you need some service on your Volvo in Vancouver, the guys to see are, Pawlik Automotive, you can reach them at 604-327-7112 to book your appointment. You have to book ahead because, they're busy and, they're just in Vancouver for all you other folks in the rest of North America as well. Check out the website, pawlikautomotive.com, hundreds of articles and videos on there about all makes and models of cars, the YouTube channel, Pawlik Auto Repair, same thing. We've been doing this for five years as well, thank you so much for watching and listening to the podcast, we appreciate it and, thank you Bernie.

Bernie: Thank you Mark and, thanks for watching, we love doing these, it's lots of fun.

2010 Volvo XC70, Drive Belt Pulley Replacement

Mark: 2010 Volvo XC70 Drive Belt Pulley Replacement.

Mark: So Bernie, today's victim is a 2010 Volvo XC70 with a drive belt replacement. What was going on with this vehicle?

Bernie: This vehicle actually, it was the second visit to our shop. In the previous week, there were some concerns with the vehicle, some vibrations and clunks when shifting from drive to reverse, and into park, and accelerating. And we'd determined that a couple of the engine mounts were worn out. So we replaced the mounts, which solved a lot of the issues, but there was still one leftover noise that was occurring. It was an interesting condition. Most noticeable when you put it in reverse, and if you put your foot on the brake and rev it up. Now, normally, a person wouldn't do that, but this is what we had to do at the shop to find the noise. But when you're accelerating slightly in reverse, there would be this strange noise coming from the engine. So this is what we were looking at on this Volvo.

Mark: And where was the noise coming from?

Bernie: Well, the noise was coming from the centre of the engine compartment area, and this engine, it's a 3.2L Volvo 6-cylinder. It has a very unique distinction of having all the accessory drives in the centre of the engine compartment. They actually drive the accessories off the back side of the engine, not the front, like is normally done on, I'd say, 99.9% of every other car on the road. They've chosen a very unique system of having the drive belt pulleys, the air conditioning compressor, the alternator, power steering pump, and water pump all on the back side of the engine. And that's where the noise was coming from.

Mark: Oh, those Swedes. So, what was causing the noise?

Bernie: Well, eventually, after a very lengthy diagnosis, and we wanted to be sure we knew what we were doing, because there's some extremely expensive ... I shouldn't say 'knew what we were doing.' Knew what we were going to replace. There's some extremely expensive parts in this vehicle, and complication, which we'll talk about later. What we found is that the accessory drive belt pulley, which it's got a one-way clutch type mechanism on it was worn out, and causing the noise.

Mark: And how did you figure out that the pulley was the cause of the noise?

Bernie: Well, there's a few methods, but one sure-fire way to determine, sometimes, whether a noise is inside an engine or whether it's an external noise, is to actually remove the belt from the system. Now, actually removing the belt on this vehicle is very complicated, as I say, by the location. We'll look at some pictures in a second. But once the belt was removed, the noise had disappeared, so it was really a matter of thinking, okay, is ... And even with the belt off, there could have still been something that was loading the pulley or the rear-end drive unit, called the READ unit, in a strange way, that could have been causing noise. But we pretty much determined that the noise was coming from a pulley-related item, and after some time and testing, we found that this pulley was, in fact, bad. We also found that ... there's a tensioner pulley and an idler pulley, and they were both worn out, as well, so we replaced all of them. But those other two pulleys were not actually the cause of the noise.

2010 Volvo XC70, Drive Belt Pulley Replacement
2010 Volvo XC70, Drive Belt Pulley Replacement
2010 Volvo XC70, Drive Belt Pulley Replacement
2010 Volvo XC70, Drive Belt Pulley Replacement
2010 Volvo XC70, Drive Belt Pulley Replacement

So let me just get into some pictures, here. So there's our 2010 Volvo XC70. Nice looking station wagon, all-wheel drive, lots of nice accessories, and useful to go wherever you want to be going. So this is the 3.2L engine. So again, traditional with any modern engine, plastic covers over top of everything. But if you remove this cover, you can see the spark plug, the ignition coil area, fuel injectors, that sort of thing. This is the intake manifold here, and underneath here is the location of the alternator. And over here, underneath all these covers, this is where the rear-end drive unit is, and over here are all the accessories. The air conditioning compressor is buried underneath here, power steering pump is back here, and the water pump is way over here, driven by the power steering pump. So the belt is hidden, as I said. It's several hours' worth of work just to change the belt, believe it or not, on this car, so it's kind of a crazy design. Normally, all the accessories would've been over here, but I guess they decided, "Hey, we can cram the engine over further." And it's actually kind of a smart use of space, but complicated to repair.

So we'll just get into our next photo. So this is the accessory drive pulley. Inside, you're basically looking at, this is the part that bolts onto the shaft on the READ unit. And I'll just get into another picture that's perhaps a little more ... We were looking to view in this direction, but here's the pulley where the belt sits. And inside this large area here, there's a clutch mechanism. The smooth-out operation of the belt, mostly, I would think, is the idea of this, but this is what wore out. You really can't feel anything when you turn it, but once it's running and under a certain load condition ... as I mentioned, we got the noise happening most often with the air conditioning compressor switched off, the vehicle in reverse, left foot on the brake, and right foot accelerating a little bit. So about 1,000 rpms, there's this quite horrific vibration. That's how we got the noise happening most commonly.

And then, the other two items I mentioned we replaced, this is the tensioner assembly. So there's a big, round spring inside here, and this forces the tensioner tight on the belt. So this is the kind of thing that, why modern belts don't tend to squeal like ... When we work on the older car with v-belts, half the time they come in, they're squealing. And I remember, that was a big service we used to do. Tightening belts, replacing belts. It just never lasted very long. But on modern cars ... And it's a good thing on this Volvo, because it's so hard to get to, but they tend to last a long time. You know, 100,000 kilometres without any problem, where you try to get a, I don't know, a 1965 Chevy, you'd be lucky to get 20,000 miles before your belt starts screeching and squealing, and then you've got to adjust them, and you know, it's kind of crazy.

The other pulley down below here, this is the idler pulley. And again, you know, when we spin these bearings, they're very noisy, so it indicates the bearings are worn out. And we replaced them all, and the vehicle was nice and quiet afterwards.

Mark: So, you mentioned something called a READ unit. What's that?

Bernie: So this is a unique feature on this 3.2L Volvo engine. It stands for "Rear end accessory drive," and in order to drive these belts, and to conveniently locate them at the back of the engine, they had to create a separate mechanism that they wouldn't normally create. So the timing chain on this engine, similar to many Volkswagen and Audi products, is actually on the back side of the engine. And the READ unit actually, if they didn't have to drive the accessories off the back of the engine, they could've just put the timing chain straight from the crankshaft to the camshafts. And they have to have another piece sticking out the front of the engine.

So the rear end drive unit is a bunch of extra complexity. There's a timing chain that goes from the crankshaft up to the READ unit, then there's another connecting gear from there that goes to the camshaft. So it's an integral part of the timing chain. And they do fail. Very expensive to fix. And in this READ unit, there's also a shaft that sticks out in two directions: one goes to the pulley we replaced, which drives all the accessories, the other one goes to the alternator. And there's a coupler unit on that, as well, that can fail, too. So lots of bits and pieces. But that's what the READ unit is. An extra-complicated mechanical piece on the engine to facilitate this nice, crammed-in tight engine compartment.

Mark: So, overly complicated. Is it really worth all the hassle?

Bernie: Well, sometimes, you wonder. But, I mean, from an engineering point of view, I think to myself, well, it's a very efficient use of space. But, you know, when it comes time to pay the repair bills, you're going to be paying a lot more money, because there's a lot more that goes wrong. So I don't know if it's right or ... You know, I've kind of tried to stop judging whether cars are right or wrong, or I kind of tend to look at how well were the materials used to make it, and how durable is it? Because inevitably, most things will need to be fixed sooner or later. But how they make it? I don't know. It'd be interesting to have conversations with automotive engineers about some of this stuff. But yeah, if you don't want a complex vehicle, don't buy this particular one.

Mark: So, then, speaking of complexity, perhaps, how are Volvo XC70s overall for reliability?

Bernie: They're not too bad, but there are a few things we fix, and this is one item that tends to fail. As I mentioned, the belts, while reliable, can be expensive to repair. These are the kind of vehicle that have the rear differential bearings that wear out, so there's a few common problems, but overall, they're a pretty good car. I mean, they're a nice car. You'll spend more money than you will on a Toyota, but you usually hear me say that on every podcast anyways, but ... There's more to go wrong, and they're a little more complex. But a nice car.

Mark: You can reach them at 604-327-7112 to book your appointment if you're in Vancouver. And of course, if you're somewhere else, we love you watching our videos. You can check out the website, pawlikautomotive.com, as we get a lot of visitors from the United States and around the world. As well, on YouTube, there's hundreds of videos on Pawlik Auto Repair channel. And of course, thank you for listening to the podcast, and thank you, Bernie.

Bernie: Thank you, Mark, and thank you for watching and listening.

2011 Volvo XC60; Rear Spring Replacement

Mark: Hi, it’s Mark from Top Local, we’re here with Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver’s best auto service experience, servicing and repairing vehicles in Vancouver for 38 years and 18 time winners, so far, of Best Auto Repair in Vancouver as voted by their customers. How’re you doing Bernie?

Bernie: Good thanks Mark. I like the so far, it’s good, many years to go.

Mark: So we’re going to talk about a 2011 Volvo XC60. This is a nice station wagon-ish SUV kind of vehicle. What was going on  with this vehicle? 

Bernie: Well the owner of the vehicle came to our shop, he’d seen some of our videos on YouTube of noisy rear ends on Volvo’s and figured we were the people to have a look at it. So he brought the vehicle into our shop and we had a look at it.

Mark: And what was wrong?

Bernie: Well what we found essentially, something quite different from all the other videos, all our other videos on Volvo rear ends, all feature worn out differential bearings, but this one had something quite different. It had a broken rear leaf spring, actually it had two broken rear springs and it was very interesting because I just casually backed the vehicle up in my parking lot about to take a little road test and I stopped immediately because just backing it up 5 feet the vehicle’s going bang bang bang in the back. So there’s something pretty serious wrong with it. We put it on the hoist, did an inspection, we found the right rear leaf spring was broken so badly it was actually hitting the right rear axle as the vehicle turn.

Mark: Was it a leaf spring or a coil spring?

Bernie: Coil spring.

Mark: And so, what’s required to do that kind of repair?

Bernie: Well, it’s actually a pretty straight forward repair. There’s some suspension bracketry that needs to be removed and of course, you need to have ways to hold everything together because the springs are under pressure, especially the new ones. Because the old one was broken, it’s easier to get out. But it’s not too involved in the job. The parts and unfortunately are only available from the dealer, as least in Canada. We may have been able to order it elsewhere but none of out local suppliers had it other than the Volvo dealer, so that’s where we got the spring from. Put it in, pretty straightforward repair. Also replaced the cushion, it’s like a snubber cushion that if you ever hit, if the spring collapses, if you hit something so hard that the suspension fully travels to the end of its travel, there’s like a rubber cushion, we replace those because they’ve been damaged too.

Mark: And you have some pictures?

Bernie: I do. Let’s have a look at a couple. So there’s our Volvo XC60. You said nice station wagon, all wheel drive so the XC in Volvo it’s cross country, so I guess the idea is that you can go pretty well anywhere with it. They got pretty decent ground clearance and you can travel across the country in any condition, in luxury. What else do we have here for pictures? Then we have our broken spring. So that’s a broken rear leaf spring, sorry coil spring, I keep calling it leaf spring, it’s a coil spring. So you can see right at this spot here and there, that the spring is broken apart and there’s also a piece of the spring missing here as well. So there’s another chunk of the spring that had come off and the spring was also broken on the other side as well, although not quite in the middle, it was sort of more, you know near the top third of the spring. But that’s basically it. You can see a lot of rust here, so pretty certain what happens is the spring will develop a slight crack of some sort and then as over time, water corrosion will seep in and it’ll eventually cause the spring to break.

Mark: And why, that would seem to be a fairly rare thing, like what would cause a spring to break like that?

Bernie: Well you say, it’s a pretty rare thing and in fact it doesn’t happen too often, but yesterday we replaced these springs, and then it just so happens that we had a Mazda 3 come in with a banging noise in the back end with a broken coil spring as well. It’s not entirely uncommon but I mean, I think as far as causes, I mean, overloading a vehicle could certainly be a cause for it. Other than that I think, just sometimes hitting bumps little too hard. These springs are always under stress and so eventually you know, as I say that this one, you can see a very rusty area, probably developed a little stress crack, moisture seeped in, road salt corrosion, eventually weaken the spring. But certainly if you’re going over hard roads, hard bumps that’ll affect it over time. I say hard roads, I mean like you know bumpy roads, logging roads like that kind of thing.

Mark: And is it safe to drive a vehicle with a broken spring?

Bernie: Well certainly this one was not. The Mazda we had yesterday, there was only a little piece of the spring broken off, so the actual spring, it was just on the end, so the actual spring itself in kind of intact. But the risky thing with a spring breaking and as this Mazda, a piece of the spring comes off and that piece could, depending on where the spring’s located on the vehicle, could easily jump out puncture your tire, you know while you’re driving down the road. So it can be pretty serious, you definitely don’t want to drive with a broken spring.

Mark: And how are the XC60 Volvo’s for reliability?

Bernie: Well, they’re pretty good. This particular Volvo, it’s a 2011, not that old, has about over 200,000 kilometres, in really nice shape. They’re a little quirky in design, the engine, they have the serpentine drive belts are actually located between the transmission and the engine so it’s a lot of work to change it. So there’s a few quirky designs about it that make it, it can make it a little expensive to repair but as far as reliability, is really very few issues. We did our complimentary inspection on the vehicle, there’s no fluid leaking anywhere under the car, so that’s quite an achievement for that kind of mileage. Now this is the first time we’ve seen this vehicle, so they may of had a number of repairs previously but we do work on a number of and don’t see  a lot of problems. Pretty good.

Mark: So there you go. If you’re looking for service for your Volvo in Vancouver, the guys to see are Pawlik Automotive. You can reach them at 604-327-7112 to book your appointment, you have to book ahead, they’re busy. Or check out their website pawlikautomotive.com, we’re getting ready to launch our PodCast, or you can check out our videos on YouTube. Pawlik Automotive Repair. Thanks Bernie

Bernie: Thanks Mark

2010 Volvo XC70 Differential Repair

Mark: Hi, it’s Mark Top Local, we’re here with Bernie Pawlik, Pawlik Automotive in Vancouver. Vancouver’s best auto service experience, servicing and repairing vehicles in Vancouver for 38 years and 18 time winners of Best Auto Repair in Vancouver as voted by their customers. How’re you doing Bernie?

Bernie: Doing very well.

Mark: So we’re going to talk about a 2010 Volvo XC70 that had a differential noise, what was going on with this Volvo?

Bernie: Well this is a typical problem with this car, probably the worst thing that goes on in this vehicle is that the rear ends, there’s a bearing in the rear differential, it wears out and causes quite a loud noise when you’re driving down the road. So the owner of the vehicle, had taken it to the Volvo dealer, got a quote on the job, it was pretty pricey from Volvo, about $6000 in Canada. The reasoning for the high price is they replace the complete rear differential assembly.

Mark: So we’ve talked about this before. Is this the same unit as a Land Rover?

Bernie: It is. So the Land Rover LR2 and the Volvo XC70 basically share the same drivetrain, same engine, the same transmission, rear differential and obviously the bodies look quite a bit different on the vehicles, but the Land Rover LR2 experienced the same issues. Land Rover however sees parts for the units, whereas Volvo doesn’t which is why their repair is so expensive. We do it for a third of the price, under a third of the price of what Volvo does. We remove the differential, take it apart completely, replace all the bearings, seals and it works. It works fine, does a great job. So and saves an awful lot of money. I’ll share a few photos while we’re at it. So there’s our 2010 Volvo XC70, there’s a bit of rain, it was a rainy day in Vancouver when we did the service on this vehicle. So there’s the car, this the is rear differential cradle. In doing the job, the whole real differential cradle has to come down, this is about half of it. The actual differential assembly sits right in this area here. One of the, see one of the axle shafts here, the wheels are located out here. So there’s lot of work involved to actually get the differential out and do the job. It’s a pretty big piece of work. Here’s the actual differential assembly after we’ve repaired it and re-bolted it back in. I’m not sharing any photos of the interior of this, we have done other posts before that there’s photos of bearings. So if you search our channel, you can find pictures of the insides, but this is basically, the unit you see right on here it says FoMoCo, which is Ford Motor Company who own both Volvo and Land Rover at this time. So they basically buildit this drivetrain in Sweden but if you take the Land Rover unit out it says exactly the same thing on it. And this unit in the front here, this is not part of the, this is called the Haldex unit, this is part of the all wheel drive system and it allows, it’s a variable clutch, it allows slippage between the front and rear. So it allows for smooth all wheel drive engagement. But yeah, that’s basically the unit, the bearing that wears out is usually right around this area here, so that’s where it’s loudest. There’s four bearings inside the unit that, we replaced them all because the front one wears the most but the you know, the other ones are contaminated with metal filings so it’s best to do them all.

Mark:  So you have to disassemble that whole unit to get at the bearings, is that how it works?

Bernie: We do. We have to take that whole cradle down, we have to take the unit apart, clean it and take the bearings apart. We use a press, hydraulic presses to remove the bearings and to out them back on. It’s a bit of work but it’s you know, it’s a nice savings for the client. And overall the same kind of reliability long term as replacing the entire unit.

Mark: And overall the same kind of reliability long term as replacing the entire unit?

Bernie: Absolutely. We’ve never, we’ve done many of these units, we’ve never see any wear on the gears. When we put them back together there’s absolutely no noise whatsoever, there’s really no compromise in doing it this way and they’re rebuilding them anyway. So and the Haldex unit on the front that I mentioned, I mean those, I’m not certain if actually Volvo includes that piece or not in their job. But if it is included, I mean those parts rarely ever fail, I think we’ve repaired one in our whole career here. Now we’re not a Volvo dealer and we don’t see hundreds of Volvo’s every week but there’s, it’s a very rare part to every fail. So the repair is 100% good and Land Rover does it all the time too.

Mark: So how are these XC70’s for overall reliability?

Bernie: They’re good. It’s a pretty good car, not a lot of problems. Of course, this differential is probably thee main thing and if you own one, at some point you’ll have to do something. It’s kind of like if you own a Subaru with a 2.5 litre engine, you’re going to have to do head gaskets and so forth. So it’s just one of those things and by the way the mileage on this vehicle is only 72,000 kilometres, so that’s pretty low milage. It doesn’t take a lot of use of time before this issue happens. Other than that it’s a good car.

Mark: So there you go, if you’re looking for service for your Volvo in Vancouver, or your Land Rover, 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 buys or check out their website pawlikautomotive.com. There’s hundreds of articles and video on there or our Youtube channel, Pawlik Automotive Repair. Thanks Bernie

Bernie: Thank you Mark.

2002 Volvo V70; Driver’s Door Module Replacement

Hi, it’s Mark from Top Local, we’re here with Bernie Pawlik, Pawlik Automotive in Vancouver. Thirty eight years of repairing vehicles and 18 time winners of Best Auto Repair in Vancouver as voted by their customers. How’re you doing Bernie?

Bernie: Doing very well. You say 38 years, I start to feel a little bit old

Mark: Well it happens to all of us, the grey hair starts to creep in. So a 2002 Volvo V70 drivers door module replacement. This is a little bit of a different thing, what was going on with this driver’s door?

Bernie: Well when the vehicle was brought to us, there was a couple interesting issues. First of all, the battery would go dead overnight. So again that doesn’t necessarily indicate a driver’s door module but what did indicate a problem in that area was that there was a clicking sound coming from the driver’s door area where the power window switch is located. The driver’s door module and power windows switch are kind of an integrated unit and there’s a clicking sound as soon as you shut the key off there’d be a click, click, click, constant noise. If you unplug that unit, the noise would go away. Of course you have no functional power windows but also the customer had noted that the power drain would go away so the battery wouldn’t go dead overnight. So that kind of gave an indication the problem was in that area.

Mark: Ok, well what’s a driver’s door module?

Bernie: Ok, well I kind of, well almost explained that. But a driver’s door module well basically it’s a computer, computerized unit that sits, it’s usually integrated with the power windows switch assembly and what it does is that it networks with the other computers in the vehicle. So although a 2002 seems pretty old, it’s actually pretty modern by the standards of the way vehicles are built. This vehicle has a number of networked modules and the driver’s door module is one piece of it. So what happens is I think in an older car, you would when you pull the power window switch for say the passenger window, it had very thick wires that would go all the way over to the passenger’s window motor and switches and if that would cause the window to go up and down. Now that would require very thick wires, a lot of current draw through the car. With modern vehicles, they’ve eliminated that. There’s just one main power and ground wire that goes to each door and then from there it gets a very low voltage computer signal, there’s a little relay in the module and that all works again through a central control module. So the driver’s door module is a piece of that. I hope that’s not too complicated an explanation. But what it does, it makes, it allows for smaller wires as the cars have got more complex there’s more electronics to them. So it allows for smaller wires, less number of wires and also certain functionalities like for instance, if you get like a European convertible, some of them you go to open the power roof, it’ll automatically lower all of the windows and these are the functions you can do when you have everything electronically linked together. So you can hit one button and it’ll open all the windows of the car. May be overly complicated but it’s kind of neat and that’s just the way car are nowadays because we can do it.

Mark: So I’m  going to guess the repair was just replacing the door module is that what was involved with the repair?

Bernie: Well you’d think so. However being a complicated electronic piece it is a little more complicated than that. The door module is actually a really easy piece to replace, you know it clips in and out of the door, doesn’t take too long to do but the hitch is on this particular car, it’s not the case with every one of them, but on a Volvo you have to reprogram the module to the vehicle. There’s a coding inside the module and once you plug the other one, the new one in, the vehicle doesn’t know it has a driver’s door module. So reprogramming is something we have to do. At this point I’m just going to share a couple of photos because we’re going to talk about some reprogramming but I’ll just get into a photo share for a second here. So here’s the door locks, here’s the power window switch mechanism, you know with your, it’s typical it’s got the mirror, power mirror as well as the power door lock and the four windows. And the actual module itself sits underneath the power window switch, so it’s all kind of one big unit about three four inches deep. To reprogram the vehicle, we actually hook the computer up and you can actually see all the modules of the vehicle. So this is the Volvo’s original OEM software and when it scans the vehicle it actually picks up all the modules. So you have the ECM which is your engine control module, TCM transition control module. This is a whole list, all the green units are the modules that are on this vehicle and you notice there is one red one, DDM driver’s door module. This is the module before you reprogrammed it, is basically the computer saying well we don’t read this module, we don’t see it. So that’s kind of a list, this is fantastic because you know again, you’ve got a rear module, passenger door module, and I won’t decode some of these, I can figure then out but it might take a little while, a BCM body control module, that’s a big one to where a lot of these, but you can see that they’re all linked in some way, shape or form.

Mark: And reprogramming modules something you’re doing a lot of in your shop?

Bernie: Yeah it’s something we can do, now it varies from vehicle to vehicle what we’re capable of. We can pretty well program an vehicle but certain vehicles we can program more of than others and Volvo is awesome because we can actually program any module. And actually when we interface with it it actually gives us the complete OEM manufacturers diagnostic system. So really good capabilities. It’s not something we do very often because it costs extra money to access it. So if we have a tricky diagnosis, we can access that system and then of course we have all access to all the software to download. But with a lot of other, some vehicles, we can only do the engine and transmission. We also have a company that we deal with that has more sophisticated diagnostic equipment and scan tools. Their business is basically reprogramming vehicles so we call on them from time to time to do some of the vehicles that are a little trickier. But Volvo’s are awesome, you know Volvo’s are really excellent for what we can do.

Mark: And so how did the car work after all the repairs?

Bernie: Fantastic. I mean there’s no more battery drain, all the windows worked fine, the moment it was reprogrammed everything just started working just like it should and no more clicking sounds, no more power drains, it worked perfectly.

Mark: So this is an almost 16 year old Volvo, getting old, is it still a worthwhile car to be doing these kind of repairs on?

Bernie: Well I’d say it’s still worthwhile to do it if the rest of the car’s in good shape. It was a rather pricey repair because unfortunately the door module is only available from the Volvo dealer, there could of been a used one available and there’s all the reprogramming and of course the diagnosis. I don’t want to get into the cost, but it wasn’t a cheap repair, but overall these are pretty good cars, they’re worth keeping, they’re generally well built. I say repair costs are kind of higher than average but it is a more sophisticated car than again a Toyota Corolla but you know they’re good cars. And I mean as far as a used car buy, if it’s the kind of car that you like it could be a worthwhile car but I would say make sure you check the service records, the miles, you know what the actual life of the aged mileage of the vehicle is but even a 200,000 kilometre Volvo, still has a lot life left in it but have a mechanic inspect it, that’s kind of the key so you know what you’re getting.

Mark: So there you go. If you’re looking for service for your Volvo new or old, the guys to see in Vancouver are Pawlik Automotive. You can reach them at 604-327-7112, they’re busy, you’ve got to book ahead or check out their website pawlikautomotive.com. Thanks Bernie

Bernie: Thanks Mark.

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