1980 El Camino Lights Dim and Brighten

1980 ALL OTHER MAKES ALL OTHER MODELS
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LEONIDAST70
  • MEMBER
  • 1 POST
I am experiencing lights dimming and getting brighter while driving at night. The battery light is also coming on and going off while experiencing this problem. Any ideas??? Please help... :? Thank you in advance.
Feb 19, 2006 at 12:06 PM
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BURRBRIAN
  • ✓Experienced Mechanic
  • 158 POSTS
hello, it sounds like the first thing you should do is check out your alt. belt and see if it is loose or glazed over. This could cause it to be slipping and affecting your lights. Do the lights get brighter when you give it gas? Go dim when you let off or slow down?
Your alternator could be getting weak, also.
But the belt would be the first place to go.
Don't think you have any severe problems but you might have your battery checked, too.
good luck :roll:
Mar 6, 2006 at 12:38 AM

Suggested Repair

Check the alternator belt first for looseness or glazing that could let it slip. If the belt is sound, have the alternator and battery tested, since a weak alternator can make the lights dim and brighten and the battery light flicker.

Conversation Summary

The owner of a 1980 El Camino reports headlights dimming and brightening while driving at night, with the battery light coming on and off. The expert recommends checking the alternator belt first for looseness or glazing, notes the alternator may be weak, and suggests having the battery checked as well.

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