It’s been asked of every new mechanic for more than a century. Does it matter in 2025?
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.
Use it or lose it. Looking for an easy way to win over your customers that they’ll enjoy every time they drive? Look at their vehicles from a hypermiler’s perspective.
Pete Meier explains how a dial indicator is necessary for a true wear check.
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Auto care news and advice you can use.
The finer points of performing coarse alignments.
He also synthesized chlorofluorocarbons (CFCs).
Ever spot what appears to be a second oil filter under a vehicle? Lemmy and Nick discuss the advantages of spin-on transmission filters for fluid protection and service.
Peering inside the inner workings of a deceptively complex tool
Lemmy explains why this basic task always comes before removing the positive cable to help you understand the theory behind the practice.
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Auto care news and advice you can use.
This one part became the symbol of the Edsel’s failure.
Stop beating your sockets to death.
Learn about a shop that’s making Jeeps all they can be.
Removing old fluid from a vehicle’s braking system can be a time-consuming chore, but it doesn’t need to be.
Why build what you can buy inexpensively?
The most dangerous piece of equipment in a shop is often the most neglected.
Need a smooth finish on a part you’re cleaning up with a file? Lemmy shows how draw filing can achieve a clean result with a totally different method of holding a traditional file.
Here are some outlandish—and not so outlandish—examples of mechanic and dealership TV commercials.