2004 Pontiac Grand Am wont hold charge or charge battery

URAD72

MEMBER
2004 PONTIAC GRAND AM
6 CYL
2WD
AUTOMATIC
100,114 MILES

My wife's grand am is having issues that point to the alt. But tests show it to be good, a few weeks ago the security light started flashing and I had her use the key ing the ignition for the 30 minute time limit and it started she didn't believe it would work but now the battery light comes on, my first instinct is the alt. But tests show it to be good, the battery was replaced when the security light started flashing going to have both testes again but i'm thinking that the security system is keeping it from charging the battery but not for sure i'm lost at the moment please help with this problem

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

I'm thinking that the security system is keeping it from charging the battery. If it was the security guard I don't think it will start or do anything

Is it cranking over and refuses to start or won't crank at all/nothing be specific so I can help

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Saturday, March 21st, 2009 AT 7:36 AM

URAD72

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3 POSTS

At the moment it wont charge after I jump it off after the battery was replaced a few days later the battery light came on, alt. Was tested and found to be good but battery went dead a few days after that and will not recharge after jumped off.

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Saturday, March 21st, 2009 AT 4:31 PM

RASMATAZ

MECHANIC
75,992 POSTS

Check the wiring harness connection if okay-get the computer field generation control circuit tested. This is the one that controls the alternator field windings.

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Saturday, March 21st, 2009 AT 8:59 PM

URAD72