Having problems with your 1999 Pontiac Grand Prix ?
99 pontiac grand am alt.good/ battery good, but will not stay charge
Check for the levels of distilled water in the compartments... avoid salty appearence on the two nodes of the battery...
Another thing to check...I had the same problem, there was nothing left on at all but there was something draining the battery. In MY CASE. The light for the trunk was good but i checked it with an electrical meter and it was still stealing power from the battery. Check around with a meter, maybe you will find a loose wire or something thats stealing power. Hope this helped.
Repair Help & Product Troubleshooting for 1999 Pontiac Grand Prix
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