DO I NEED A NEW BATTERY OR ALTINATOR

  • Tiny
  • Cbwing88
  • 2004 Ford Mustang
  • 70,000 miles

Battery light comes on when I have AC on and go over 2K rpm

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Sunday, July 8th, 2012 AT 3:27 PM

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  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

Have the alternator checked. It should be putting out 14 to 14.5 at 2000 rpm.

Roy

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Sunday, July 8th, 2012 AT 3:33 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

Check the beltings and harmonic damper as well.

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Sunday, July 8th, 2012 AT 4:13 PM

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