A defective harmonic balancer can affect the accuracy of ignition timing readings or a defective harmonic balancer can damage the crank. Which technician is correct?

Spoiler alert: be careful running it through the car wash.
Nick and Lemmy check out a flex plate from an imported Japanese automatic transmission with very few miles under its belt.
Throw a set of these resettable “fuses” in your toolbox.
Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle. With interesting stories from around the world, features on creative people and solutions, and all kinds of other stuff that’ll make you use your mind and your hands.
Auto care news and advice you can use.
Step up your repair game with sensible choices.
If you’re an experienced technician, you may feel as though you’ve seen everything, but don’t let your knowledge prevent you from learning more.
Especially for your mechanically-inclined clientele, sometimes a fingerful of clean grease is a lifesaver.
A fellow YouTuber recommended it. Why not give it a try?
Two solutions for yellowed, hazy headlights.
Are you a wrench and a writer? A counterperson and a communicator? A service writer and a scribe? Get paid to share your experience and expertise with thousands of Shop Press readers.
Auto care news and advice you can use.
It’s been asked of every new mechanic for more than a century. Does it matter in 2025?
Shop Press’ Andy Greaser breaks down permanent antifreeze and today’s coolant for your vehicles.
As new cars and trucks, especially EVs, get heavier than ever, it’s important to check your lift’s rating and condition.
One basic vehicle checkover has several lessons to teach.
As dashboard cameras become more common, repair professionals should know how to deal with them.
Do you have a study guide to prepare for your ASE exams? Which parts of that study guide do you use the most? Dorman Training Center instructor Pete Meier explains.
Why wouldn’t your shop purchase a few of these?
Two technicians are examining a tapping sound coming from a V6 engine. See who has the correct response about what’s causing the noise.