Eric Garbe, Author at UnderhoodService
The Vital Nature of Multi-V Belt Systems

From the alternator to A/C, the multi-v belt uses a truck’s engine to operate crucial components. Here’s how to keep things running smoothly.

The Autel IA900

Take an in-depth look at the Autel IA900 Alignment and ADAS calibration frame solution.

Installing The Continental Multi V Stretch Belt

Learn how to install stretch belts safely. Sponsored by Continental.

Selling Underhood Parts for Hybrids

Anything that can happen to an ICE in a standard vehicle can happen in a hybrid.

Technology Update: EV Acronyms And Terminology

Alphabet soup? Don’t worry – these strange combinations of letters will be beneficial to your career.

Spark Plug Evolution

Spark plugs have changed over the years.

Inside the Scan Tool

A look at the internal and external components that affect performance and durability.

CAT III Multimeters (VIDEO)

CAT III simply refers to the Category Safety Rating of the multimeter.

A/C Service Equipment: We’ve Got It Good These Days

The world of A/C service has changed over the years. New tools and equipment make the job easier than ever.

Using an Oscilloscope for Ignition Diagnosis

Use an oscilloscope for an efficient diagnosis.

Spark Plugs and Wires (VIDEO)

Wires should be replaced at the same time as spark plugs. This video is sponsored by Autolite.

How Can Something So Small Be So Important? (VIDEO)

Too small of a gap can lead to a weak spark, and too large a gap can lead to misfires. Sponsored by Autolite.