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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

Separate gasket – ASE practice questions (VIDEO)

Separate gasket – ASE practice questions (VIDEO)

by | Jun 4, 2024

Separate gasket – ASE practice questions (VIDEO) Description Which of the following is LEAST LIKELY to require a separate gasket for installation?A) EGR valve B) Exhaust manifold C) Oxygen sensor D) Turbocharger More ASE Practice Questions Separate gasket...
EGR system – ASE practice questions (VIDEO)

EGR system – ASE practice questions (VIDEO)

by | May 21, 2024

EGR system – ASE practice questions (VIDEO) Description Under what conditions would the EGR system be expected to be operational?A) Cold engine, full throttle B) Hot engine, idle C) Hot engine, full throttle D) Hot engine, part throttle More ASE Practice...
Tapping V6 – ASE practice questions (VIDEO)

Tapping V6 – ASE practice questions (VIDEO)

by | May 7, 2024

Tapping V6 – ASE practice questions (VIDEO) Description Two technicians are examining a tapping sound coming from a V6 engine. Technician A says the noise could be caused by a bent pushrod. Technician B says the noise could be caused by escaping exhaust gas. Who...
Rust exhaust hole – ASE practice questions (VIDEO)

Rust exhaust hole – ASE practice questions (VIDEO)

by | Apr 23, 2024

Rust exhaust hole – ASE practice questions (VIDEO) Description Which of the following is the most critical result of a rust hole in an exhaust system? A) Escaping exhaust gas B) Failed inspection C) Excessive noise D) High cost of repair More ASE Practice...