what causes my battery to drain overnight?

Asked by Dec 14, 2014 at 03:38 PM about the 1997 Pontiac Grand Am 2 Dr SE Coupe

Question type: Maintenance & Repair

I have a pontiac grand am se. With my car off and key out of the ignition my blower
motor will turn on and even when I turn the blower motor to off my car battery still ends
up drained by the next day

5 Answers

75,405

Power drain,s are sometime hard to find,i would suggest,removing one fuse at a time,and check the draw from the battery with a meter,this may be the only way to find the issue.

3 people found this helpful.
46,915

Charge your battery up again. Once the battery is a full charge, locate the fuse for the blower motor and pull it out. See if the battery is dead the next day. If battery is fine, I would replace the blower motor resistor. Sounds like it may have short circuited some place.

2 people found this helpful.

You can add a toggle switch to your blower motor circuit, it will cut all power to the blower motor.Or a post disconnect at your battery, in case you have more than one thing draining your battery.

2 people found this helpful.

What would cause my 2004 Grand Am to blow a head gasket when it never got hot? I just bought.this car! Could had been the previous owner issue

46,915

Those Grand Am's are notorious for head gasket issues. Just a bad design or cheap gasket material.

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