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1999 Oldsmobile Alero Question: Battery light comes on & goes off has new battery & alt checks out ok.

 

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Bren2736, 3.4L V6, Lees summit, MO, July 01, 2014, 10:35
 Rookie

Dash light comes on after car is on and moving. Goes off after a couple of seconds. Had new battery put in and checked starter & alternator. Both are good. Light is now staying on longer but still goes off in less than one minute.

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  • Answer #1

    July 01, 2014, 17:05
     Journeyman

    Most likely the alternator is starting to go. It may test ok because they generally don't put much load on it and it's a very short test cycle.

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  • Answer #2

    July 01, 2014, 17:05
     Journeyman

    Most likely the alternator is starting to go. It may test ok because they generally don't put much load on it and it's a very short test cycle.

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