On a hybrid vehicle’s air conditioning system that utilizes a high voltage electrical compressor, can only the oil specified by the vehicle manufacturer should be used in the compressor or is PAG oil is acceptable for use in an electric vehicle’s compressor?
Why a compressor clutch doesn’t engage, and tips to find the cause quickly.
Pete Meier explains how vehicle usage and oil/filter quality should affect your maintenance schedules.
You may be surprised at how diesels have made a name for themselves in motorsports.
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Auto care news and advice you can use.
Technician A is preparing to recover the refrigerant from a customer’s vehicle. What are the steps he should take when performing this service?
Giorgetto Giugiaro influenced everything from groundbreaking supercars to beloved city vehicles.
Pete Meier explains why these single-use bolts should always be replaced for safety and proper function.
Customer satisfaction surveys should be clear, concise, and targeted.
Technician A completed a compression test, noting high readings suggest an exhaust restriction, while Technician B says the test checks volumetric efficiency.
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Auto care news and advice you can use.
When a customer rolls into your shop and asks for a “tune-up,” what’s your first reaction?
Do you lubricate the threads on spark plugs before installing them? Should you? Pete Meier explains the finer points of spark plug lube application for best results and OE service procedure compliance.
Brake cleaner is loved by techs (for good reason), but make sure you’re taking safety precautions.
All four cylinders are below specification by about the same amount. After performing a wet compression test, values remained unchanged. What could cause this condition?
Many high-end scan tools come with a capable digital storage oscilloscope. Time to put that tool to work.
Did you know that a modern fuel injection system can fire off multiple sprays in the same time it takes for a spark to jump across a plug?
And the most misdiagnosed.
Technician A and Technician B are discussing ways to use fuel trim as a troubleshooting aid. Technician A says that fuel trims that are correcting for a lean condition at high RPM and load conditions indicates a problem in fuel delivery. Technician B says that this condition is caused by a vacuum leak.
