Understanding Your Car's Electrical System

Your car's electrical system includes the battery, ignition, starter, engine, and the alternator. When you turn your key in the ignition, the battery supplies a burst of power to the starter to start the engine. Gears in the engine cause the drive belt to spin a wheel in the alternator, and the alternator takes over charging the battery and supplying power to your car's electrical system.

An alternator is maintenance-free, and it can last from eight to twelve years. Some symptoms of a failing alternator are:

  • The battery warning light stays lit.
  • Your headlights are dim.
  • Other electrical failures.

If you experience any of these issues, it may not be the alternator. So, bring your car to Sheehy Nissan of Mechanicsville, and let them diagnose the problem. Then, they can make the necessary repairs.

Categories: Parts

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