This video covers the essential steps to properly test a car's alternator and diagnose common alternator issues. The guide ...

For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

This essential tool lets you measure the electric current and voltage of a circuit. Here's what you need to know to use it correctly.

When your car doesn’t start, often the battery is the culprit. Unfortunately, most vehicle owners do not check their battery until it fails. As preventative maintenance, the suggested best practice is ...

Multimeters can measure voltage, amperage, and resistance — things a knowledgeable mechanic can apply to several systems in a vehicle.