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Harmonic balancers – ASE practice questions (VIDEO)

Description Technician A says a defective harmonic balancer can affect the accuracy of ignition timing readings. Technician B says a defective harmonic balancer can damage the crank. Who is correct?More ASE Practice Questions

Technicians vs. DIYers: How well can you gauge tire pressure? (VIDEO)

Description After seating the bead on a new tire, the valve core needs to be installed and the tire inflated to the correct pressure. Some techs can air up a tire, install the core and land right on the target final pressure… but it’s not as easy as it looks. In this...

Smarter, not harder: relative compression testing

Pete Meier, one of our Dorman Training Center instructors, is a pretty smart cat. Since the day I’ve met him, he’s made it clear that the lab scope is one of his favorite tools and that not using one is a mistake. Now I’ve put a lot of miles on my DVOM over the years,...

Can’t break that crank bolt loose? You need a crank socket (VIDEO)

How to test for blown fuses in a car or truck | Fast and easy method Description Crank fasteners are often a real pain to remove. And sometimes, even expensive impact wrenches and large breaker bars struggle to remove them. A crank socket is just the ticket for these...

So you want to restore a classic or build a kit car? Think twice.

For reasons that have more to do with personality than pragmatism, I recently considered anew the possibility of restoring a classic car, or perhaps building a kit car. It’s an itch I’ve thought about scratching since the days when Popular Mechanics regularly featured...

EGR system – ASE practice questions (VIDEO)

EGR system – ASE practice questions (VIDEO)

EGR system – ASE practice questions (VIDEO) Description Under what conditions would the EGR system be expected to be operational?A) Cold engine, full throttle B) Hot engine, idle C) Hot engine, full throttle D) Hot engine, part throttle More ASE Practice...
Tapping V6 – ASE practice questions (VIDEO)

Tapping V6 – ASE practice questions (VIDEO)

Tapping V6 – ASE practice questions (VIDEO) Description Two technicians are examining a tapping sound coming from a V6 engine. Technician A says the noise could be caused by a bent pushrod. Technician B says the noise could be caused by escaping exhaust gas. Who...
The best explanation of a differential is from 1937

The best explanation of a differential is from 1937

The first time I saw this video, I was hooked because I’m natively a bike guy and it starts off with motorcycle stunt riding. But the guys horsing around on those ol’ Harley VLs actually are the producer’s interesting and educational way to visually demonstrate why a...