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PSA: Be Safe With Brake Cleaner

If you work in a shop (and if you’re reading this, chances are you do), you are undoubtedly familiar with brake cleaner. And, if you know the scent of brake cleaner, you probably know that using it is not great for your health if it comes in contact with your skin,...

Compression Testing | ASE Practice Questions (VIDEO)

Description Technician A has just completed a dry compression test of a four-cylinder engine. 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? A)...

When a Voltmeter Isn’t Enough (Video)

Description With the variety of electronically controlled systems on a modern automobile, the days when a test light or simple voltmeter was enough to diagnose problems are long gone. Using a digital storage oscilloscope (DSO) can make troubleshooting faster and more...

P0420/P0430—The #1 DTC in the Country

DTCs (Diagnostic Trouble Codes) P0420 and P0430 are generic industry codes and part of the OBD-II standards. The descriptor labels the code(s) “Catalytic Converter Efficiency Below Threshold – Bank 1 (or 2)”. And the number one part sold to repair this problem is a...

Troubleshooting Fuel Trim–ASE Practice Questions (VIDEO)

Description 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...

Add or Delete These Simple Parts to Help Customers Save Money

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. In case you haven’t heard the term before, the hypermiling community is obsessed with optimizing their vehicles’ fuel...

Are You Properly Checking Hub Bearings For Wear? (VIDEO)

Description The old “grab the wheel and shake” test you may have used for tapered bearings doesn’t apply for the hub bearings found on most of today’s vehicles. Pete Meier explains how a dial indicator is necessary for a true wear check.Related Videos

Automotive professionals vs. popular auto myths! (VIDEO)

Automotive professionals vs. popular auto myths! (VIDEO)

Automotive professionals vs. popular auto myths! (VIDEO) Description Spend any amount of time in the auto repair industry, and you’ll hear customers sharing strange ideas about the “right” way to drive and care for their vehicles. We assembled a list of common and...
The pros (and more than a few cons) of chrome

The pros (and more than a few cons) of chrome

My Shop Press colleague Lemmy and I have had an ongoing debate about chrome. Since I’m a lover of antique cars, particularly Tri-Five Chevys, you can guess that I’m a pretty big fan of chrome. I think it makes any car look luxurious and stylish. Lemmy, on the other...
Dash warning lights: feature or bug?

Dash warning lights: feature or bug?

Warning lights are something we’re all familiar with—all too often, they’re the reason a customer steps into your shop. Mechanics of a certain age will remember a time when the phrase “idiot light” was used to describe a dash light. The derisive term referred to the...