Two Principal Symptoms of Alternator Failure

Car alternators usually have a long life—8-12 years. However, these essential components of your car’s electrical system do not last forever. Stators, rotors, diodes, and voltage regulators are all subject to wear and, eventually, to failure. There are two symptoms of alternator failure with which you should be familiar.

  • Pay attention to the warning light shaped like a battery or that says “ALT” or “GEN.” This dash indicator is attached to your computer system. When the computer detects a low current from the alternator, it will activate this light. Normally, you will see it for a couple of seconds when you start your car. This happens while the alternator gears up, but shuts down when current flow climbs to the desired level.
  • Headlights dim when current reduces, as do your dash lights. Your windows may be slower, or your heated seats may suddenly stay cold.

If you notice either of these symptoms, bring your car to Alderson European Motors to have your alternator checked.

Categories: Parts