Question about 1998 Oldsmobile Aurora

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Charging system keeps killing alternaters what is the proplem

Changed altenater lasted one day then killed my battery

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1 Answer

Most likely the battery was bad before replacing the alternator. Usually one can cause the other to fail. If you have a bad alternator and it's been charging the battery with low voltage for some time, the new alternator can actually "kill" the battery. If the battery is older, usually I replace it when replacing the alternator.

Posted on Aug 03, 2008

  • Patricia Layton
    Patricia Layton May 23, 2014

    okay...same issue with alternator here and I had both replaced together...what else could it be?

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Ate up a battery, we replaced the alternater and it still is killing batterys.


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Its kills alternater, its charges good until I


Sounds to me like you have a grounding problem Have you had the transmission loose lately because there is 3 ground wires on one of the bolts if it is not tight you endure the systems taqht you are speaking of. Check it before you do anything else and it wont cost you a dime. I was told the alternator went bad. I had to replace it again and it isnt the problem. Check Your Ground

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