An engine exhibits a knocking noise. During a cylinder power balance test, the noise abates. Which technician has the correct diagnosis?

What does “MIN THK.” really mean?
Don’t waste your time with codebreaking. Just grab a paint pen.
Chefs know a helpful hack to keep spaghetti from falling out of an opened bag, and the same idea happens to work perfectly for zip ties. Give it a try next time you have a pack of zip ties that doesn’t have a resealable closure.
Auto care news and advice you can use.
You can’t beat it. Well, actually, you can.
Under what conditions would the EGR system be expected to be operational? We have the correct answer.
Break out your paint pen—you’re the service writer now!
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?
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Auto care news and advice you can use.
Chances are you’re going to have a Pavlovian response when seeing one of these vehicles.
We’ve all heard the expression “buy once, cry once,” and for some auto parts, those are words of wisdom. For others, it might be an unnecessary expense.
When it is necessary to make your own gaskets, small bolt holes are often the trickiest features to cut.
Featuring state-of-the-art editing, this video is still relevant nearly a century later.
Which of the following is the most critical result of a rust hole in an exhaust system?
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.