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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

Test fuses without removal! (VIDEO)

Test fuses without removal! (VIDEO)

Test fuses without removal! (VIDEO) How to test for blown fuses in a car or truck | Fast and easy method Description Checking fuses is one of the most basic (and important!) tests you’ll use when diagnosing a vehicle’s electrical system. Most cars and trucks on the...
The surreal appeal of steel wheels

The surreal appeal of steel wheels

By some estimations, steel wheels should have faded into obscurity about two decades ago. That’s based solely on my highly unscientific and not-at-all-researched memory of when the used hub cap shop in Downers Grove, Illinois, closed its doors for good. Nothing left...
There really are a ton of automotive door styles

There really are a ton of automotive door styles

The Shop Press team was sitting around jawing the other day about the history of the term “suicide doors.” I read a number of explanations, but none were very satisfactory. During my cursory research, however, I did start noting the rather large number of door styles...