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Categories: Tech Stuff
Chasing common electrical problems with the Ford Focus

The Focus connector does not usually cause an alternator failure, but can cause a charging system problem
Categories: TSB's
Honda cold rattle

At cold start-up, customers may complain about a loud engine rattle that lasts for about two seconds.
6 Key Reasons School Bus Drivers Quit

Why do school bus drivers quit? Here, a veteran driver presents a list of common concerns among his colleagues.
Categories: TSB's
Ticking GM V8 lifters and DTC

Customers may complain about a ticking noise, engine misfire and/or SES light. This may be the result of an AFM (Active Fuel Management for ...
Categories: Tech Stuff
The dreaded engine surge

In this article, we'll discuss engine idle issues, surging and "hunting" problems. First let's cover the "basics" in terms of the possible causes...
Categories: Tech Stuff
Electronic power steering

As gas prices seem to never drop to a comfortable price, it's important for vehicles to be as fuel efficient as possible. That is where an electronic...
Categories: Tech Stuff
Diesel exhaust fluid: Fluid-injection for NOx reduction

If your shop doesn’t routinely service diesel-equipped vehicles, you may not be fully aware of the use of DEF (Diesel Exhaust Fluid). DEF consists...
Categories: TSB's
How to fix a Mazda that stalls at stop

This bulletin applies to 2003-2009 Mazda6, 2004-2009 Mazda3, 2006-2009 Mazda5, 2006-2009 Mazda MX-5 and 2007-2009 Mazda CX-7. The problem involves...
Categories: Tech Stuff
Electric fuel pump diagnosis: Houston, we have a problem

All too often when a no-start condition or hard-start is encountered, some techs may be too quick to automatically blame the electric fuel pump.
Categories: Tech Stuff
Failure in Spec: What Happens When a Mass Airflow Sensor Lies

Sometimes the hardest part of chasing driveability problems is knowing where to start. It’s tough enough when the trouble codes indicate something...
Categories: TSB's
Coolant crossover leak

Engine coolant leaks detected on some GM vehicles may be the result of leaking gaskets between the coolant crossover pipe and the front of the right...
Categories: Tech Stuff
Engine oil -- Conventional, synthetic or semi-synthetic blend? What's the correct engine oil for your customers' vehicles?

Pity the poor do-it-yourselfer who decides to purchase engine oil at an auto parts store or big-box retailer. There are products making all kinds of...

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Categories: Products
Carbon Cleaning machine makes engines shine

Carbon Cleaning USA is bringing a machine developed in France by Power System to the United States to clean engines.
Categories: Tech Stuff
Fuel trim: How it works and how to make it work for you

When diagnosing a check-engine light or drivability issue, you can learn a lot by looking at fuel trim data on a scan tool. Fuel trim can be affected by...
Is the School Bus Warning Light System Clear Enough?

A petitioner asked NHTSA to make changes to the way warning lights are displayed when school buses are stopping to load or unload passengers.
Categories: TSB's
Rear axle service light

Some owners of 2010-2012 Cadillac SRX vehicles equipped with all-wheel-drive may comment that the “service rear axle” message is displayed on...
More Than ‘Just a School Bus Driver’

A Georgia school bus driver shares a letter he wrote appealing to the school board and public to recognize all the tasks involved in being a school bus...
Categories: Tech Stuff
Honda Electric Power Steering

The first patent for power steering, granted in 1900, describes a mechanical system that never went into production. Hydraulic power steering was...
Categories: TSB's
Audi remote key is inoperative

This TSB applies to 2000 to 2014 Audi models including the Q5, R8, A6, A8, Q7, A4, A3, TT, Allroad, A5 and A7.

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