Your multimeter is a versatile tool. But for certain diagnostics, you need an oscilloscope to get a closer look at a vehicle’s electrical systems.
What an oscilloscope shows that your DVOM can’t (VIDEO)
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HOT OFF THE PRESS
Chrome Overload: GM’s “Mistake of ’58”
What happens when chrome goes too far?
Hand in Glove: EV and Hybrid Service Safety
Glove testing is important; don’t skip it.
Symbol of a Stumble: Edsel’s “Horse Collar” Grille
This one part became the symbol of the Edsel’s failure.
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SHOP STUFF
Auto care news and advice you can use.
Coolant Service – ASE Practice Question (VIDEO)
Proper cooling system maintenance goes beyond time and mileage, requiring technicians to evaluate coolant condition, additive depletion, and the root causes behind cooling system issues.
Should You Lubricate Spark Plugs Before Installing Them? (VIDEO)
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.
PSA: Be Safe With Brake Cleaner
Brake cleaner is loved by techs (for good reason), but make sure you’re taking safety precautions.
Compression Testing | ASE Practice Questions (VIDEO)
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?
When a Voltmeter Isn’t Enough (Video)
Many high-end scan tools come with a capable digital storage oscilloscope. Time to put that tool to work.
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SHOP STUFF
Auto care news and advice you can use.
Should You Replace That Damaged Plastic Intake Manifold?
Find out when plastic intakes go bad, and why you should or shouldn’t replace one.
P0420/P0430—The #1 DTC in the Country
And the most misdiagnosed.
Troubleshooting Fuel Trim–ASE Practice Questions (VIDEO)
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.
Add or Delete These Simple Parts to Help Customers Save Money
Use it or lose it. Looking for an easy way to win over your customers that they’ll enjoy every time they drive? Look at their vehicles from a hypermiler’s perspective.
Are You Properly Checking Hub Bearings For Wear? (VIDEO)
Pete Meier explains how a dial indicator is necessary for a true wear check.
VIDEOS
The Story of Dagmar Bumpers
Is this the only car part named after an actress?
Should You Charge More When Dealing with Tire Sealant? (VIDEO)
Learn why it’s not a bad idea to charge a little more for the hassle.
An Ode to “Car Talk”
A radio show that, hopefully, will live on for years to come.