DEF is easy to contaminate, and fortunately, it’s also easy to test. Check to be sure that your customers’ DEF is up to spec with these simple tests.
Easy tests for diesel exhaust fluid (DEF) contamination (VIDEO)
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HOT OFF THE PRESS
Can’t break that crank bolt loose? You need a crank socket (VIDEO)
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.
So you want to restore a classic or build a kit car? Think twice.
Unless you’re a professional mechanic or a hardcore DIYer, I suggest you focus on building memories instead of a car.
EGR system – ASE practice questions (VIDEO)
Under what conditions would the EGR system be expected to be operational? We have the correct answer.
SHOP STUFF
Auto care news and advice you can use.
The cars of Stephen King stories: books and film adaptations
It’s much more than just Christine.
Do you mind working on customer vehicles equipped with dash cams?
As dashboard cameras become more common, repair professionals should know how to deal with them.
The story of the very first reverse gear in an American car
Reverse is an innovation that’s easy to take for granted—but it was a revolutionary addition to the automobile.
How to get a little more (temporary) performance out of your air impact gun
“Rebuild in a can” is not the right way to fix the tool, but it will get you by until you can repair it correctly.
Are automakers starting to rethink OTA microtransactions?
Microtransactions spark unexpected microaggressions.
ABOUT SHOP PRESS
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.
SHOP STUFF
Auto care news and advice you can use.
“Hot Rod Magazine: 75 Years” book review
The celebration of a magazine that was, for some, where their love of working on cars began.
The only two mistakes you can make on your first timing belt job (and why you shouldn’t worry about them)
T-belts aren’t scary at all.
Ten (sort of serious) questions every service writer should ask
Skillful interrogation is a wonderful way to make your professional life easier. Here are a few suggestions on where to start.
TECHNICIAN CHALLENGE: Can you identify these dash lights? PART 4 (VIDEO)
Think you know your dash lights? Shop Press contributors Keith, Miriam, Chris, and Greaser try their best to identify all kinds of lights, symbols, and indicators.
Several tips to make brake line removal less of a headache
Don’t break fittings—break ‘em free.
VIDEOS
Why a magnetic drain plug is a worthwhile upgrade (VIDEO)
Do your customers know the benefits of magnetic oil drain plugs? Swap out their standard drain plugs to help protect against unnecessary engine damage.
Brake booster valve – ASE practice questions (VIDEO)
A customer states the brake pedal falls slightly when the brakes are applied while starting the engine. Which technician response is correct?
The final days (and cars) of AMC
In November 1988, two employees snuck a camera into AMC’s Kenosha plant for a farewell tour.