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?

An engine exhibits a knocking noise. During a cylinder power balance test, the noise abates. Which technician has the correct diagnosis?
We’ve all heard the question that starts like this. So will you lend tools?
A playlist of videos from a recent trip to a Dorman contributor’s personal shop.
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Auto care news and advice you can use.
He also synthesized chlorofluorocarbons (CFCs).
Faults in the car pay you. Faults in the scanner cost you.
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?
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.
Stop beating your sockets to death.
They look the same, but serve different roles. Here are the very specific scenarios where the lesser-known parallel connector shines.
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.
Analyzing a new trick I learned from an old dog.
Crank fasteners are often a real pain to remove. Mechanics with expensive impact wrenches and large breaker bars struggle to remove them—but there’s a better way.
Unless you’re a professional mechanic or a hardcore DIYer, I suggest you focus on building memories instead of a car.