The alternator charges the battery when your engine is running and also provides power to the electronic systems, making it an important part for vehicle operation. If your lights are dim while driving or your battery dies within minutes of starting your car, it might be time for a new alternator.
A great way to check your alternator for proper operation is to use a multimeter to test the battery charging voltage while running. The battery charging voltage should be approximately 13-14 volts. If you are watching voltage slowly drop, or if it is not charging at the proper voltage, it's time for a replacement.
This Part Fits the Following Vehicles