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Online Auto Repair Manuals - Alternator Repair

ALLData: Do It Yourself Auto Repair Manuals


Information

What is an alternator?

An alternator is a device that converts mechanical energy into alternating current (AC). A rectifier converts AC current to DC current, which charges the battery and runs the electrical system.

How do I know if the alternator is going bad?

Since alternators fail in stages, it's often hard to tell at first if an alternator is beginning to fail, especially if you aren't using high-current using accessories such as headlights or air conditioning very frequently. An inexpensive voltmeter can be used to check the voltage to determine if the alternator is working properly. Although a loud grinding noise can be caused by other problems, there's a good chance it means the alternator needs to be replaced.

What are my options?

There are numerous automotive and other websites that explain how to repair or replace an alternator. You can also purchase a repair manual or how-to book from an online vendor.