Under what conditions would the EGR system be expected to be operational? We have the correct answer.
EGR system – ASE practice questions (VIDEO)
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HOT OFF THE PRESS
Book review: “Pump and Circumstance”
A walk (or drive) through the history of gas and service stations.
Piston rings – ASE practice questions (VIDEO)
Study for your ASE exams with this quick practice question.
The most important fluid in the car and how to test it.
Brake fluid can wear out just like any other fluid.
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SHOP STUFF
Auto care news and advice you can use.
Troubleshooting Fuel Trim–ASE Practice Questions (VIDEO)
Technician A and Technician B are discussing ways to use fuel trim as a troubleshooting aid. Technician A says that fuel trims that are correcting for a lean condition at high RPM and load conditions indicates a problem in fuel delivery. Technician B says that this condition is caused by a vacuum leak.
Parallel connectors vs. butt connectors
They look the same, but serve different roles. Here are the very specific scenarios where the lesser-known parallel connector shines.
What’s the deal with permanent and lifetime antifreezes? (VIDEO)
Shop Press’ Andy Greaser breaks down permanent antifreeze and today’s coolant for your vehicles.
Vehicle weights are increasing. Can your lifts handle it?
As new cars and trucks, especially EVs, get heavier than ever, it’s important to check your lift’s rating and condition.
Diagnostics case study: don’t overcomplicate things
One basic vehicle checkover has several lessons to teach.
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SHOP STUFF
Auto care news and advice you can use.
A History of the U.S. Presidential State Car (Part 2)
The commander-in-chief’s road transportation, from LBJ’s Lincoln Continental to “The Beast.”
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.
Top 5 mechanical oddities on RHD vehicles, and how to deal with them if one rolls into your shop
Working on a right-hand drive vehicle requires deviating slightly from a mechanic’s routine.
VIDEOS
Harmonic balancers – ASE practice questions (VIDEO)
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?
Easy tests for diesel exhaust fluid (DEF) contamination (VIDEO)
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.
Technicians vs. DIYers: How well can you gauge tire pressure? (VIDEO)
In this challenge, techs and DIYers get as close as possible to a target final pressure to see who’s got the best skills and strategies at the tire machine.