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Battery light

Tiny
SAM BARBARY
  • MEMBER
  • 2000 CHEVROLET S-10
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
After driving about one hundred miles the battery light came on for about one minute and the volt meter gauge dropped to about 10 volts. When I slowed down to a stop it went to about 14 volts. About ten minutes later the battery light stayed on for a minute and went off while the gauge dropped to about 10 volts. It seems when the volts drop and I slow down, the volts go to about 14.
The battery is a year old and alternator about four years old. Your help is appreciated.

Thank you

Sam
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Tuesday, May 2nd, 2017 AT 7:28 PM

2 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
First clean and re-tighten all the battery cable connections, then have the alternators output tested as well as the battery load tested. It sounds like a loose connection and GM battery cables are a PIA because any acid leakage goes into the cable ends and eats them inside the insulation.
Also, check the ground connections at each end of the instrument panel. Have seen a bad connection there cause issues as well.
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Tuesday, May 2nd, 2017 AT 10:34 PM
Tiny
SAM BARBARY
  • MEMBER
  • 3 POSTS
Thank you so much. I really appreciate the help. I will get back to you and let you know what happens.
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Wednesday, May 3rd, 2017 AT 10:38 AM

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