Mechanics

BATTERY DRAIN

2001 Oldsmobile Aurora • 6 cylinder FWD Automatic • 100,000 miles

I have a 2001 olds aurora, and the battery keeps draining overnight. I checked for a parasitic drain and its within spec at 30mA. The battery tests good and the alternator output is ok. Also when you start the vehicle you have to wait for a solid security light on the dash before it will crank. Do you know of any problems that night be causing this battery to drain?
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Kbcobra21
December 15, 2010.



Did you check the alternator for feed back, a faulty diode will do this and drain the battery, it will still give you a charge rate albeit a bit lower than normal.

Mark(mhpautos)

Mhpautos
Dec 20, 2010.
I am having this same problem. My question for "mhpautos" is, I have replaced my alternator and the battery is still draining within 24 hours.

Tiny
Foreverlsu3
Dec 30, 2011.