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  • Mon: 8:00AM - 5:00AM
  • Tue: 8:00AM - 5:00AM
  • Wed: 8:00AM - 5:00AM
  • Thu: 8:00AM - 5:00AM
  • Fri: 8:00AM - 5:00AM
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221 Viking Ave, Brea, CA 92821

Star Auto Service & AC Automotive Tips: Alternator

Posted September 27, 2026 1:36 PM

Your alternator makes electricity to start and run your engine and all of the vital electrical systems in your vehicle. That’s everything from the on-board computers to the turn signals. And of course there is the entertainment system, seat heaters, power windows and everything you plug into the power outlets. After your alternator makes enough electricity to do all that, it recharges your battery with what’s left over.

When Brea drivers constantly have a low or dead battery, the alternator is usually a prime suspect. However, the alternator is just one vital component of the starting/charging system, and a problem with any of the other components could be the actual cause.

In addition to the alternator, the charging/starting system includes the battery, starter, serpentine belt system and all of the electrical cables that connect them. Your Star Auto Service & AC service advisor has a systematic process of testing components and connections to get to the source of your trouble. The initial symptoms determine where to begin the diagnostic process, and he follows the procedure until he tracks down the culprit.

For example, diagnostic tests at Star Auto Service & AC could reveal that the alternator is not generating enough electricity to keep the battery charged. Is the alternator bad? Not necessarily. A worn serpentine belt tensioner could be allowing the belt that spins the alternator to slip. So the perfectly good alternator is not spinning at the proper speed. The solution for Brea drivers is to replace the serpentine belt system – not the alternator.

The good news for Brea drivers is that our highly-trained technicians at Star Auto Service & AC can properly diagnose all your vehicle troubles and make the necessary repairs to get you back on the road in Brea.

Give us a call.

Star Auto Service & AC
221 Viking Avenue
Brea, CA 92821
7146710784





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Brea, CA

I took my 2019 Ford Fiesta St. I had clutch issues and other minor issues. They not only completely fix all my issues, but my car runs like it's brand new. I would recommend Star Auto Service & AC to anyone looking for car repairs at a reasonable price!

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Star Auto Service & AC

221 Viking Ave
Brea, CA 92821

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