Featured Stories

What happens when a vehicle’s fuel tank is filled with “bad” fuel? Well, it varies depending on how bad the fuel is and if the engine is gasoline- or diesel-powered. Fixes can...

Our early fleet of electric vehicles all struggled with range in the wintertime. A used 2011 Leaf had a range of 85 miles in the summer, but only 50 miles in the winter. A Chevy...

Owners of 2014-2015 Jeep Cherokee vehicles may describe a drone noise at steady state engine RPM. The drone noise may sound similar to a louder-than-normal engine exhaust noise...

Unless you have just started in the automotive field in the last few weeks, you likely have faced this work order. A customer is concerned about exhaust noise. You get in the ...

Check the bleeder valve. If you suspect a bad caliper, it may be an issue with sticky/seized piston(s), but don’t jump to that conclusion right off the bat.

While the installation of the correct engine oil may not be an important item to a customer when they arrive at our shop for service, the type of oil that is installed in the ...

All technicians are aware that the scan tool holds the No. 1 priority in our initial diagnostic strategies. In my personal experience, the No. 2 tool in diagnostics is the DVOM...

This article will compare the low voltage system to the high voltage system and explain how a 12-volt brain can get confused. It is essential that you master the principles of...

We're covering engine oil filters for gasoline-fueled engines, along with cabin air filters.

If the MIL is on with DTC P2798 on a 2017 Chevy Bolt EV vehicles, the cause may be damaged wire insulation resulting in a short to ground or corrosion in the line to the G5 transmission...

Some 2017-2019 Toyota Tacoma trucks equipped with the BD20 differential (non-TRD) may exhibit a noise or vibration from the rear at low speeds or while braking. This may be caused...

This bulletin applies to 2004-2009 and 2010-2015 Toyota 4Runner vehicles equipped with part time 4WD. A cyclical groaning/grinding noise may be heard at the front differential...

Some 2017 Ford F-150 trucks equipped with a 3.5L GTDI engine may exhibit a MIL on with DTC P164C (internal control module start-stop performance) stored in the PCM.

Some 2011-2012 Ford F-Super Duty vehicles equipped with a 6.7L diesel engine built on or before Feb. 12, 2012, may exhibit a run-rough and/or misfire concern with or without DTCs...

The park assist feature of some 2009 GM models — including Buicks, Cadillacs, Chevys, GMCs and the Saturn Outlook — may not be operative, and the vehicles may be showing messages...

2014-2015 Ram Pro Master vehicles are equipped with a spare tire winch. The customer may complain about a squeak noise at the rear, and/or being unable to lower or raise the spare...

Some 2011-2016 Ford F-Super Duty trucks equipped with a 6.7L diesel engine may exhibit a fuel knock noise at idle, an illuminated MIL and one or more of nearly two dozen DTCs....

Some customers driving a 2015-2018 Chevy Silverado may comment on a surging condition that is felt when driving. During diagnosis, the technician may determine this as a torque...

This bulletin applies to 2014-2016 Jeep Cherokee vehicles equipped with a 2.4L I4 Multiair engine and built on or before July 26, 2016. The customer may describe a slight engine...

The spark plug has a straightforward job to do. It’s responsible for igniting the air/fuel mixture in the engine’s combustion chamber initiating the power stroke. But this task...