Your alternator quietly does more than keep the battery topped up. It turns the engine’s rotation into a steady flow of electrical power that keeps every modern system in your car alive, from fuel ...

We earn commissions from purchases you make using links in our articles. Learn more. The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially ...

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 ...

Alternator trouble is a very common occurrence, and unless you live with a silver spoon in your mouth and have a dedicated person to do your dirty work, alternator trouble is in your future. When it ...