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

Many vehicles today have made the switch to DC brushless fuel pumps. They don’t work like the older brush-type pumps do.
Almost every vehicle on the road has a longer wiper blade on the driver side. On older vehicles, you’ll also see two of the same size wipers working together. But can you think of any models that have the longer wiper blade on the passenger side?
Let’s review some of the icons and oddballs we’ve featured here so far.
Auto care news and advice you can use.
They’re real important for two separate reasons.
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.
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!
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.
You can’t beat it. Well, actually, you can.
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.
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.
A playlist of videos from a recent trip to a Dorman contributor’s personal shop.
Before you toss those zip tie scraps in the trash, consider saving them for plastic repair jobs. In many cases, the plastic used in zip ties will bond with common automotive plastics with the help of a soldering iron.
Which of the following is LEAST LIKELY to cause an oil leak? Our technicians have the answer.