HEADLIGHTS DIMMING AT IDLE

  • Tiny
  • fancyflyer
  • 2007 Chrysler PT Cruiser
  • 4 CYL
  • FWD
  • automatic
  • 25,000 miles

Enter your question. Headlights dim when I turn on the heater fan at idle. Also, they seem to dim a little at a stop. Just noticed it tonight. Could that be a battery problem, an alternator problem or something else. This is a 2007 PT Cruiser with only 25,000 miles.

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Friday, December 17th, 2010 AT 4:16 AM

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  • Tiny
  • mhpautos
  • Expert
  • 30,561 posts

First check the alternator charge rate, have the battery load tested and check that all battery terminals are making a clean and tight contact to the posts, start here.

Mark (mhpautos)

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Friday, December 17th, 2010 AT 10:46 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 20,052 posts

I wouldn't be real surprised if you find no problem. It's not terribly unusual to see symptoms like that at idle. Sometimes the RPMs just aren't sufficient to keep up with the load.

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Friday, December 17th, 2010 AT 10:48 AM

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