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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 03-08-2010, 06:29 PM   #1
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i jus got a new alternator and battery put into my bonneville about a year ago and the battery gauge is still jumping back and forth from 14 to 12 when i coast real slow and when i idle. any ideas what it could be?
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Old 03-08-2010, 06:36 PM   #2
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What year is your car?
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Old 03-08-2010, 06:37 PM   #3
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i have a 96 SE
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Old 03-08-2010, 06:41 PM   #4
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Take a look at this write up. https://www.gmforum.com/electrical-133/adding-sense-wire-your-alternator-278806/ It should help. But if your idle is low that can also effect the voltage. Also check on your belt to make sure it'* not worn or loose.
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Old 03-08-2010, 06:47 PM   #5
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thanks man by the way u got the sickest bonnie i ever seen
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Old 03-08-2010, 07:30 PM   #6
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Hope it works for you. And thanks for the complement.
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