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1989 Ford Ranger Battery Low Charge Warning Light

Tiny
MLS
  • MEMBER
  • 1989 FORD RANGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
When driving at speeds a bove 40 MPH the battery warnig light comes on & the battery charge indicator indicates that the charge rate voltage is lower than at slower speeds. A check with a voltage meter indicates the charge rate is normal atthe lower speeds but drops about one volt at the faster engine speed. What might be the cause of this? Thanks Mike
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Monday, April 14th, 2008 AT 2:46 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be a problem with the internal voltage regulator-recheck the alternator belt tension.

Or take it in and have the regulator bypassed and see what happens this will finger the regulator.
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Monday, April 14th, 2008 AT 2:53 PM

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