1990 GMC Safari battery

Tiny
MANCONFUSED39
  • MEMBER
  • 1990 GMC SAFARI
1990 GMC Safari 6 cyl Four Wheel Drive

I would like to know why the battery gage reads that the battery is low. I have replaced the battery, starter and the alternator. Once I remove the positve from the battery the van turns off. I place the positive back on an the battery reads low as if it is not charging. Please help.

Thank you.
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Monday, August 9th, 2010 AT 8:05 AM

5 Replies

Tiny
MMPRINCE4000
  • EXPERT
Do not remove the battery cables when engine is running, this can damage alternator.

Take car to most autoparts stores and have charging system tested for free.
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Monday, August 9th, 2010 AT 8:12 AM
Tiny
MANCONFUSED39
  • MEMBER
Thank you. I did take the van in for testing and was told that everything was charging ok. But they did not have answer to why the battery meter would stay on low.

Can it be possible that the meter is broken?
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Monday, August 9th, 2010 AT 8:19 AM
Tiny
MMPRINCE4000
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Yes.

Measure voltage at battery terminals with DVOM.

With engine running, it should be 13.5-14.0V. With engine off, it should be 12.0- 12.5 volts.
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Monday, August 9th, 2010 AT 8:26 AM
Tiny
MANCONFUSED39
  • MEMBER
Can I repair the battery gage meter?
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Monday, August 9th, 2010 AT 8:49 AM
Tiny
MMPRINCE4000
  • EXPERT
Probably not, but aftermarket AMP and Voltmeters are available everywhere.
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Tuesday, August 10th, 2010 AT 8:22 AM

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