1992 Buick Regal battery drain, after new batt & Alt ok - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-09-2014, 01:56 AM   #1
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Default 1992 Buick Regal battery drain, after new batt & Alt ok

Hi I have a 1992 Buick Regal Gran Sport with a V8 3.8 and for the last few weeks my car'* battery is drained to around 3 amps. The first time it drained completely and no lights turned on and no beeping when I opened the door with key in the ignition. I called AAA and the guy gave me a boost and said it'* probably dead cells in the battery. So two days later before I could bring it in to see my mechanic it was drained again so I called AAA again and got their battery service where he checked the altinator and battery and it showed the guy 2 dead battery cells so I get a new battery and for 3 days everything is fine. The fourth morning same problem, the AAA guy is puzzled cause he is getting same readings when he put the new battery in. I take it to my mechanic and he charges it over night and the next 2 days it starts fine and thought it was the radar detector that came with the car when I bought it. Two days after getting it back from my mechanic, it'* dead again with only 2.7 amps. Can someone help me, cause I've checked the trunk light and glove box and they are not on when I close them.
Thank you

Last edited by 92buickregalgransp; 02-09-2014 at 01:57 AM.
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Old 02-09-2014, 03:27 AM   #2
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J - Welcome to the forum!
I assume you are not leaving anything charging etc or plugged in overnight are you?
Temporarily you may want to plug into a battery charger overnight, until you find the drain down. Probably the easiest way to find the guilty circuit is to use a voltmeter attached to the battery, or accessory port, and start to pull fuses one by one until you find the voltage remain steady, indicating the circuit responsible.
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Old 02-09-2014, 03:33 AM   #3
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Thanks for the suggestions, no i don't have anything charging. I will try that
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Old 02-09-2014, 03:46 AM   #4
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No Problem J let us know what u find out.
Please Refer to your owner'* manual for for the specific fuse panel* locations for your car.

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Old 02-09-2014, 09:22 AM   #5
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