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Misfire Cause–ASE Practice Questions (VIDEO)

Description Technician A is diagnosing a misfire. He states that a misfire is caused by a fault in the ignition system and that new plugs and coils will repair the problem. Technician B says that a misfire is detected when the ECM detects a variation in crankshaft...

A History of the U.S. Presidential State Car (Part 2)

In Part 1 of this piece, I traced the history of the U.S. presidential state car from the beginning to the Kennedy Lincoln Continental. In this part, I’ll pick up with President Lyndon Baines Johnson’s state car and continue to the present day.1967 Lincoln Continental...

Why Wheel Fastener Torque Matters More Than You Think (VIDEO)

Description If you’re still using torque sticks and impact power to install lug nuts and lug bolts, it’s time to reconsider. Pete Meier explains why the torque wrench is the only correct tool for the job … and what can go wrong when you don’t use one.Related...

A History of the U.S. Presidential State Car (Part 1)

The U.S. presidential state car (aka "The Beast", "Cadillac One", "First Car", and codename "Stagecoach") is an unmistakable symbol of our nation’s executive branch. Since we had a presidential inauguration this year, I thought it would be a good time to look at the...

Dead Battery? (Video)

Description With dozens of electronic control units on automobiles built in the last 25 years, incidents of battery drain caused by an ECU that will not turn off when it is supposed to are on the rise. Tracing the ultimate cause can be made easier, though, if you know...

Check Engine Light On?

Diagnosing an illuminated check engine light (CEL) is something professional technicians do on an everyday basis. The key to a correct diagnosis is following a logical diagnostic process and gathering the information you need to isolate and repair the cause. The...

CDK Global Outage: The Aftermath.

Nobody wants to hear it, but cyberattacks and ransomware are part of a complicated new reality for the digital systems supporting the auto repair industry. Are you prepared? Months after the CDK Global outage ravaged the auto repair industry, there are still lingering...

Is that catalytic converter actually bad? (VIDEO)

In The Bay

by | Aug 2, 2022 | 0 comments

Description

Diagnosing a catalytic converter isn’t always the most straightforward process simply because it’s so far downstream from other parts that affect its operation. You might watch this video and say, “Of course!”, but not every technician has been given the proper education on what else a converter efficiency code just might mean. Take a look as Nick and Lemmy share some of their tips for hashing out what might be causing that P0420.

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