Your alternator is the unsung hero keeping your car’s electrical systems alive and your battery charged. But when it struggles or fails, the results can be sudden and stressful. Knowing how it works, ...

Join Austin as he takes you through a step-by-step guide to diagnosing and fixing an electrical problem in his drift car.

Disconnecting the battery while the engine is running isn't a valid test for alternator function and may damage sensitive electronic parts. Instead, use a common voltmeter and the following test ...

You've added that larger output alternator, but things still don't seem right. Maybe the lights flicker, or worse, a wire has burned up. Well, your original '60 to '69 Mopar came with an alternator ...