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Dirty Throttle Plates: a Sure Sign of Poor Maintenance

Dirty Throttle plate

Severely carbon deposited throttle plates can have a huge affect on engine performance.

Quite often, however, the concern is not noted until the vehicle starts stalling, your check engine lamp comes on or a general lack of power is noted. Over the past couple of weeks we’ve had 2 vehicles in for service that had excessively carbon deposited throttle plates.

Dirty Throttle plateCleaned throttle plate

Both of these vehicles were so severely encrusted that it was best to remove the throttle bodies to clean them. Regular maintenance is key to removing the deposits.

One service that we frequently perform is the Motorvac fuel injection cleaning. During this service your throttle plate is cleaned. A Motorvac fuel injection cleaning is recommended every 50,000 kilometers or 3 years. For those who follow this recommendation the severely encrusted throttle plate and all of its related problems will never occur.

Modern CV Boots Last a Long Time

Believe it or not, cars are becoming better built and more reliable.

Having serviced cars for 30 years I’ve seen many items which once commonly wore out last much longer: examples are exhaust systems, timing belts and spark plugs.

We can now add CV boots to the list. CV boots are located on all front wheel drive axleshafts (and on some rear axleshafts) and serve to protect the CV joint and retain its lubricant. CV stands for Constant Velocity. The CV joint’s function is to ensure that your engine’s power is smoothly transmitted to the drive wheels.

A decade ago many CV boots would break around the 100,000 kilometer mark; now we see cars with twice that mileage with the boots intact. So while parts still continue to wear on cars you can be thankful that your CV boots are one item that requires less service and cost to you.

IF your vehicle is a bit older, it is important that these joints be checked out.

Damaged CV Joint Boot

Suburu Outback – Excellent Cars

set of suburu's

This here’s the Outback, mate!

What an interesting day: A shop full of Subaru Outbacks!

set of suburu's

Set of Suburu's

While we work on all makes and models, quite often we will service some of the same make or type of vehicle on the same day.

This is a first: having 3 of the same car in the shop at the same time. We service quite a few Subarus and while the models in the shop today are the same, these cars were in for different jobs.

In the far bay is a 2001 H6 VDC Outback in for upper radiator hose replacement. The center bay has another 2001, this one a 4-cylinder model and in for a number of services including a standard transaxle overhaul. In the foreground sits another H6, this one a 2005 model and in for a basic maintenance service.

Overall these are excellent cars and certainly have a loyal owner following.

Two of these vehicles belong to long term clients and these are their second Subarus. I’ve had 3 different generations of these cars myself, and like so many other cars they just keep getting better.

An interesting bit of trivia: the 2001 H6 3 litre engine has 212 horsepower while in 2005 the same 3 litre displacement puts out 245 horsepower. That is an amazing increase and mostly due to the fuel system and engine tuning.

A Paradox: A Complicated Simple Repair

Corroded Fuse contacts

Part of what makes our job fun as auto service technicians is that we never know what we will encounter from day to day.

Case in point: a new client came in with 2003 Ford F150 pickup with the concern that his A/C (air conditioning) was inoperative. John went straight to work on the diagnosis and determined that the electrical side of the system was not functioning. Fuses were tested and all were good, but still there was no power at the A/C control panel on the dash.

With perseverance he finally found a most unusual cause of the concern: the contacts between the fuse and the fuse box had corrosion, blocking flow of the electricity. The corrosion was on the load side of the fuse which made it appear that the concern was elsewhere. After cleaning the corrosion in the fuse box and installing a new fuse, the A/C functioned perfectly.

Corroded Fuse contacts

Corroded but not blown!

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