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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...

PSA: Make sure your Loctite isn’t fake!

PSA: Make sure your Loctite isn’t fake!

Loctite’s threadlocking compounds are used by automotive professionals everywhere to secure critical fasteners. Unfortunately, Loctite’s popularity has resulted in a wave of counterfeit products that can look remarkably like the real deal. Everything from the...
PSA: Check that cabin air filter

PSA: Check that cabin air filter

Most of us know that we should change the filter in our home heating and air conditioning system monthly, but why? What does it do? The role of the filter is twofold. First, it traps dirt, dust, pet dander, pollen and other allergens and helps keep the air you’re...
Exhaust tips: three ways to fine-tune your method

Exhaust tips: three ways to fine-tune your method

Exhaust work is straightforward and (I think) easy to understand. If you’ve got a lift and a ‘cety torch, it really should be gravy work. That said, I have made plenty of my own mistakes and repaired the mistakes of others. Hopefully this article helps a few of you...
Four not-so-obvious ways grease can come in handy

Four not-so-obvious ways grease can come in handy

I like grease. You may or you may not, but as a very cheap staple of most shops, I’ve learned to use it in a few unconventional ways, which has made me like it more. Here are a few times plain ol’ grease is what you should reach for. Vertically-oriented O-rings...
Two A/C checks you don’t wanna skip

Two A/C checks you don’t wanna skip

If you’ve already invested in RRR (recovery/recycle/recharge) machine equipment necessary to service vehicles with R1234yf, you may have also already learned that performing a refrigerant identification test prior to recovering what is in the customer’s vehicle is...