Lemmy explains why this basic task always comes before removing the positive cable to help you understand the theory behind the practice.
Why We Take the Negative Battery Cable off First and Put It on Last (VIDEO)
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HOT OFF THE PRESS
Compression Testing | ASE Practice Questions (VIDEO)
All four cylinders are below specification by about the same amount. After performing a wet compression test, values remained unchanged. What could cause this condition?
When a Voltmeter Isn’t Enough (Video)
Many high-end scan tools come with a capable digital storage oscilloscope. Time to put that tool to work.
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?
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.
The History of the “This Car Climbed Mt. Washington” Bumper Sticker
These ubiquitous stickers have a longer history than most people may think.
Time-Saving Tip for Bleeding Stubborn Brakes (VIDEO)
Some brake jobs can turn into headaches when small air bubbles get trapped within the caliper itself. To resolve the problem, you could pump the brakes over and over, or you could try this handy suggestion to free the air bubble and move on with the brake bleed process.
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.
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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.
Tire Damage Assessment – ASE Practice Question (VIDEO)
Assessing tire damage in order to make a repair decision, which technician is correct with the right repair?
Watch This Video On Dry Sump Oil Systems
Find out how they differ from wet sump oil systems.
Tariff Talk: A Look Backwards at The Chicken Tax
Lighten the mood at the next cocktail party you attend.
Watch This Video on the Inventor Who Put Lead in Gasoline
He also synthesized chlorofluorocarbons (CFCs).
Why Some Vehicles Have More Than One Spin-on Filter (VIDEO)
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.
VIDEOS
Check Engine Light On?
Grab a generic OBD-II scan tool and take these first steps to turn it off and keep it off.
Which Parts of a Tire Are Safe to Patch? The Answer Has Changed (VIDEO)
Patching a punctured tire is a common job, but are you up to date on the latest guidance for safe plug locations?
CDK Global Outage: The Aftermath.
How one dealership stayed open through the uncertainty of a cyberattack.