Your multimeter is a versatile tool. But for certain diagnostics, you need an oscilloscope to get a closer look at a vehicle’s electrical systems.
What an oscilloscope shows that your DVOM can’t (VIDEO)
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HOT OFF THE PRESS
Troubleshooting a “No A/C Compressor Engagement” Fault
Why a compressor clutch doesn’t engage, and tips to find the cause quickly.
Is the Oil Change Interval in a Vehicle’s Owner’s Manual Always the Right Choice? (VIDEO)
Pete Meier explains how vehicle usage and oil/filter quality should affect your maintenance schedules.
Diesel Engines and Racing
You may be surprised at how diesels have made a name for themselves in motorsports.
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.
Ferdinand Porsche: Engineering the Shape of Speed
How a visionary engineer shaped everything from early EVs to the world’s most iconic sports cars.
The Other Way to Use a File that Many Mechanics Don’t Know (VIDEO)
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.
Commercials That Make Technicians and Dealers the Stars of the Show
Here are some outlandish—and not so outlandish—examples of mechanic and dealership TV commercials.
Store stuff in your glove box? Thank automobile pioneer Dorothy Levitt (VIDEO)
Ever wonder why virtually all cars and trucks have glove boxes? A visionary woman and her little book about driving changed in-vehicle storage over a hundred years ago.
Inside Global (Generic) OBD-II
You don’t need an expensive scan tool to diagnose the cause of an illuminated check engine light.
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Are you a wrench and a writer? A counterperson and a communicator? A service writer and a scribe? Get paid to share your experience and expertise with thousands of Shop Press readers.
SHOP STUFF
Auto care news and advice you can use.
PSA: The Right (and Wrong) Ways to Handle Iridium Spark Plugs
New techs and DIYers should know that not all spark plugs are created, or treated, equally.
Shop Profile: Hansville Repair
71 years of success started at the end of the road.
Do You Know the Right Way to Use Rasps and Files? (VIDEO)
Any technician will have a few files in the toolbox for material removal jobs. But are you using these tools with the correct technique?
Mastering the Numbers
A practical approach to auto repair shop management.
Don’t Overlook This Step When Servicing Brakes (VIDEO)
A brake service job isn’t complete unless the reservoir cap’s diaphragm has been pushed back into place. This simple step is easy to forget, but it helps to reduce brake fluid contamination and ensure proper system function.
VIDEOS
Which Is Faster: A Spark Plug Firing or a Fuel Injector Spraying? (VIDEO)
Did you know that a modern fuel injection system can fire off multiple sprays in the same time it takes for a spark to jump across a plug?
P0420/P0430—The #1 DTC in the Country
And the most misdiagnosed.
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.