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Brake booster valve – ASE practice questions (VIDEO)

Description A customer states the brake pedal falls slightly when the brakes are applied while starting the engine. Technician A says that a faulty brake booster check valve may be to blame. Technician B says this can be caused by a leaking brake booster diaphragm....

The final days (and cars) of AMC

In the last days of AMC, two employees brought a video camera into the Kenosha, Wisconsin plant to document the end of an era. Billy and Danny take a thorough tour of the old AMC buildings and production line, which was producing its last L-body Plymouth Horizons and...

What is a core charge?

The article title is a question I asked when I was a young counterman, and most of you oldtimer mechanics and parts people of course know the story: the core charge is a way to be sure the smoked part makes its way back to the parts counter. A core charge is a deposit...

How do you inspect a serpentine belt for wear?

Performing a visual inspection of a car part is usually the first step in assessing its condition. In the case of the serpentine belt, any sign of physical damage to the belt means the belt should be replaced, and may indicate the need to more closely inspect the...

The importance of testing engine coolant (VIDEO)

How to test for blown fuses in a car or truck | Fast and easy methodDescription Dorman Training Center instructor Pete Meier explains why you should be testing engine coolant on vehicles in your bay. With a simple test strip, you can quickly check the coolant's health...

How to use a refractometer

I used to feel real dumb when I didn’t know what a tool was. After fixing things for a bit, I have come to learn that there are a lot of specialized tools and the only dumb thing is not learning about them. So when Dorman Trainer Pete Meier showed up recently with a...

Transfer cases: Married vs. divorced FAQ (VIDEO)

There is a paucity of divorced transfer cases fitted to vehicles traversing the roadways in 2024. In fact, some technicians—especially younger ones—aren’t even aware a setup beyond the married arrangement exists. If you’re unfamiliar with them, our own Technical...

What do techs recommend for a “car crate?”

What do techs recommend for a “car crate?”

Many drivers on the road have what I call “car crates” or “car boxes”: the milk crate or cardboard box you keep in your car for auto needs. As a rather non-mechanically inclined individual, I have one in my car, which is primarily made up of things I use fairly...
Ew, gross: are there cars you won’t service?

Ew, gross: are there cars you won’t service?

“Just blow into the tube and it will start right up.” The owner’s car was fitted with an ignition interlock, a machine that would analyze one’s breath for alcohol prior to allowing the vehicle to start. It was a common court order for DUI offenders in that state....
Can the flat rate system work better for a team?

Can the flat rate system work better for a team?

If you’ve been working in an automotive shop for longer than about fifteen minutes, you know what the flat-rate system is and how it works. The system promotes some behaviors and disincentivizes some others—for better or for worse. Over the years, I have become pretty...
Boomerang business cards: a quick sales tip

Boomerang business cards: a quick sales tip

My first job writing service was at a now-defunct Goodyear/Kelly-Springfield tire dealer. The way my commission was structured, I didn’t make very much money unless I sold a lot of tires. But when I sold a lot of tires, money came pouring in—my per-tire cut went up,...