Andrew Markel
Porsche TPMS

Porsche was the first manufacturer to use TPMS on a vehicle in 1986 for the 959 supercar.

Spark Plug Fouling

Understanding why spark plugs get dirty.

Axle Torque Procedures

Guessing the correct torque setting is a bad idea.

Key Programming

Three situations might require key programming capabilities at your shop.

Nissan Suspension Restoration

The shock or strut controls how the energy in the spring is absorbed and compressed.

Brake Pad Errors and Mismatches

In order to make the right selection, you must do your homework while still remaining skeptical.

Parts and Artificial Intelligence

In the past 25 years, things have changed with the Internet.

Air Ride Diagnostics Q&A: What You Don’t Know Might Be The Missing Piece Of The Diagnostic Puzzle

Air ride diagnostics can be just as complex as any ABS or fuel injection problem. The diagnostic process should start with questions about the system rather than the parts. Failing to find the root cause of a warning light DTC or intermittent problem will typically cause the problem to come back as soon as the

Brake Booster Replacement

Hydro-boost vehicles are not hard to work on, but they do require service information and a working knowledge of the system.

MINI Turbo Service

With more than a million MINIs on the roads, a lot of opportunities exist for shops to service brakes and chassis.

Why Are Cars So Expensive to Fix?

A combination of everything people require makes vehicle repairs so expensive.

Mercedes-Benz Active Body Control (ABC) Suspension Tips

ABC suspension systems can be complicated to service if you do not have the right tools, training or knowledge.