Question about 2005 Pontiac Grand Prix
Could be the battery or something draining power from the battery,
when you get home, disconnect the negative battery terminal from the battery, leave it over night in the morning connect it and try to start, if you do not start it means that your battery (although new) has a bad cell thats causing the charge to drain, take it back for warranty. Dont worry about the load test done to check the battery it'f based on the battery's current charge rate not after its left overnight.
If you did start it means something is draining power from the battery, could be,
1.) lights remain on check (hood light, door lights trunk lights) 2.) device remaining on , check radio, ac etc 3.) the cars CPU is draining too much power.
an easy way to check which one is to remove the fuses from the fuse box under the hood for each particular component to turn them off. or you can take the car to a gurage and have them go through all the harnesses for a short.
Posted on Apr 04, 2011
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