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1995 Pontiac Grand Am ground or charging problem

Tiny
OHIO DAD
  • MEMBER
  • 1995 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 14,600 MILES
My niece has a pontiac grand am sitting runs fine but it under a load it dies going down the road rolled down power window and battery light came on and gas gauge went clear past full then it died at first thought was voltage regulate since alt seemed to be working when pulled the cable off while running but then heard possible bad ground I dont have the vehicle here with me and trying to figure out where on the vehicle I can find the grounds was told should be 3 of them any help would be appreciated thank you
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Wednesday, March 10th, 2010 AT 1:31 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd have to make sure battery has full charge and battery connections are good. Some of the national brand autostores will make house calls, not sure how deep into testing they go? If a digital voltmeter is used across battery posts, the generic spec for a full charge is around 12.6 volts. Then, start the vehicle, take second reading across the battery posts, the second reading should be higher than the first, if the charging system is working. Some of the national brand autostores will test battery and alternator/charging system. If you don't have access to the vehicle, it's hard to do any testing.
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Wednesday, March 10th, 2010 AT 2:13 PM

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