Question about 1991 Cadillac DeVille

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Battery won't keep a charge

I have a 1991 deville, and my cable broke on the window (that allows it to go up and down). Then I took it to a shop to get the window fixed, and the battery wont keep a charge now. I don't know if I have a dead cell in my battery, if it is possible a wiring problem. Can the wiring in the door effect my battery from charging??

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  • mecocheathem Apr 26, 2009

    I did as you suggested, and found out that both are testing good. the connection between the battery and the cables were not getting a good connection. So after they were tighten up, the car cranked up just fine. But the next day it did the same thing again, but the cables are still tight. Could it be a problem with the wiring going to the cables to the battery?



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Not quite a solution --- but also check for parasitic current draws --- in my 1991 its the older security alarm system that runs down my battery in less than a week ususally. I could replace it with a newer smaller current one - but have gotten used to just keeping the car on a charger all the time since I don't use it for weeks at a time. Therre are a lot of other cutrrent draws due to all the interior lights - have you changed your routine since the fix. Maybe that window/switches was reassembled incorrectly.
By the way those regulator cables (in the 1991 it was a flexible plastic tape --- that gets brittle and breaks) are basically defective across the whole cadillac line going into the 2000+ models.
I just had a regulator tape replaced for about 300$. GM wanted $500. The tape itself cost just under $100 .... but the labor is a bit tedious.
Also when I left that shop my battery was dead (went in with the usual full charge) and they had to jump it when I left --- they ran it down using and testing with the window motor and having the doors open for several hours and the interior lights on - so perhaps you just need a full overnight charge.

Posted on May 02, 2009

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Take the car to a parts store like Auto Zone and the can test the battery and alternator to see which is bad.

Posted on Apr 24, 2009


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Something is draining my battery on my 1998 Cadillac DeVille

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Here's also a good resource for your car specifically on narrowing down the cause of the drain.

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1991 Cadillac Deville - fuel door broken

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