Average current leak - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-10-2012, 11:10 AM   #1
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What can be considered as a "normal" current leak when the car is "off"?

I have an annoying electrical gremlin that empties my battery overnight, but not always...
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Old 04-10-2012, 07:01 PM   #2
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I think it should be under .5 amps.

Something like that will be blatantly obvious with an ammeter once you start poking around.

Also, the power antennas are a notorious offender for something that bad. Usually the diagnosis would be to unplug the power on it, and if the problem goes away, you found your problem. I hate intermittent issues though. Just when you think you squashed it, it pops up again.
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Old 04-10-2012, 07:14 PM   #3
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Funny you talk about the antenna, it was on top of my "to check" list
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Old 04-10-2012, 07:24 PM   #4
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Just checked, still only 10ma leak... Guess I'll be checking for quite a few days
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