A reciprocating engine will always vibrate when it’s running, and not just because some parts go up and down or in and out.

How engine temperature sensors work and what they influence. And, we’ll examine some unusual coolant temperature sensor monitoring methods employed by PCMs from different manufacturers.

It doesn’t have to be that way. This article begins a series of articles on electrical circuit analysis that will help you understand the operating principles of electric circuits. It will help you troubleshoot tough electrical problems and give you the “circuit savvy” to attack difficult electrical problems with confidence.

It’s been five years since we brought you a feature length article on airbags (October 1993 Import Service). Five years ago, airbag-equipped vehicles made up just 10 percent of the U.S. vehicle fleet. According to National Highway Transportation Safety Administration (NHTSA) statistics, airbag-equipped vehicles on the road today represent approximately 41 percent of all cars […]