Car Batteries
Pontiac Bonneville

Why would your Bonneville charge somedays and then not charge other days you replaced the alt and battery?

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2011-09-13 17:26:28
2011-09-13 17:26:28

I have a 92 Pontiac and also had similar situation. Sometimes the voltmeter would go to 14volts and other times it would sit at 12volts. When I tested output from alternator to the battery with voltmeter, I did not get a good reading. Upon removal of the alternator to get it replaced, I noticed that the smaller (red) cable that goes from the alternator to the battery was loose in the connector itself. I cut the cable at the connector, stripped the cable some and crimped on a new connector. Reattached to alternator and put alternator back into vehicle. All has been fine since. Hope this may fix your problem.

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