MY BATTERY LIGHT COMES ON AND THEN GOES OFF

  • Tiny
  • fmattheis
  • 1999 Mercury Marquis
  • 62,000 miles

I've had the battery and alternator check. They are both OK. The battery and alternator have been checked and they are ok.

Saturday, April 28th, 2012 AT 9:13 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

It may test ok with a voltmeter but if there is a failing diode in the alternator, then it is bad. I would look harder at the alternator.

Roy

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Saturday, April 28th, 2012 AT 9:28 PM

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