Question about 1991 Pontiac Grand Prix

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1991 Grand Prix Battery keeps draining...

I have a totaled 1991 Grand prix. It was t-boned on the passenger side over 2 years ago. Having a need to commute to school daily, and no money to fix it the car's remained totaled but used since then. The overhead light was on constantly because the doors didn't trip the sensor on the passenger side so i took out the bulb. there, problem solved... i thought. i foamed the doors shut and put in plexi-glass windows, both to keep rain out and drove it without too many problems. Recently, as of the begginning of winter this year, the battery has been draining almost every day. some days it will start after almost a week of not running it to chargr up the battery, and other days it looses enough charge to keep it from starting in just a night. There aren't any lights on that I can see, but i know there must be something small that is either on or useing power somehow, somewhere. any ideas what that might be? On a side note, it's haveing issues with high throttle... it seems to "bounce" in power when it reached full throttle. that's just a minor worry, seeing as i dont plan on raceing my U-shaped car any time soon. Thanks for all your assistance!

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When you foamed in the door, did you get the foam in the light bulb socket? Also, check to see if any wires are pinched, or pulled out of there connections. The window wont cause any problems as long as you didn't mess with the motor, but check to see if you pinched or disconnected any wires in that location also. The high throtle is probably a sensor problem, you can check the trotle body sensor and the air intake sensore, as whell as your mass air flow. Also, a big thing that affects idle is vacume. Check all your vacume lines make sure that they are not cracked or broken. Remember vacume lines can be rubber or plastic. The bounce in power is probably a vacume line also.

Posted on Feb 01, 2009

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