The first step in replacing ignition coils is determining the type., Depositphotos Here’s How To Diagnose and Test An Ignition Coil Let’s do this!

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.

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 ...

A diagnosis of any electrical system, whether it is 12 or 24 volts, must include two key elements. First, you must test the complete circuit. Second, you must understand how that circuit works. One of ...

Ignition-Control Module Test Testing the ignition control module is a little trickier. When the module is exposed to a specific heat range—which can vary—it tends to fail.

A spark plug set in the cylinder head., Hank O’Hop Spark Plug Test Safety Because we are highlighting two different ways to test plugs, there are variable safety considerations.

You should test harmonics at the following points: input voltage, output voltage, input current, and output current. Filter integrity For most UPS systems, there are three basic filter elements: input ...

How to overcome a major limitation with the low-voltage-discharge test. When discharging battery cells, it’s sometimes desirable to discharge the cells to a low voltage.