A failing alternator can leave you stranded on the side of the road. Here’s how to make sure yours is working properly, with tips from an expert.

Six diodes are used in an alternator. Three of these diodes have "positive polarity" and are mounted on a heat sink that's called a positive rectifier assembly.

If you’ve ever wondered how your car’s battery stays charged, wonder no more. I cracked open a junkyard alternator and recorded the wonders that lie within in the second installation of our ...