1999 Mercury Tracer Battery light

1999 MERCURY TRACER
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
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BSHORTS
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  • 1 POST
My battery light comes on when the engine rpm's increase above idle. At idle, the light is out and there seems to be no problem.

My first thought is the alternator, but why would it be alright at idle and only have a problem when i step on the gas?
Oct 11, 2008 at 11:11 AM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Maybe a problem with teh rectifer bridge in Alt. a diode allowing current flow in both direction.
Oct 11, 2008 at 11:24 AM
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