Need Help - Rough Start, Bad Voltage - 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 04-14-2004, 12:12 AM   #1
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Default Need Help - Rough Start, Bad Voltage

Quote:
Originally Posted by scottydl
Normally when I fire up my 1998 SLE, it turns over and starts just fine... idles smooth as silk right away at 1000 RPM or so. But occasionally (maybe 1 out of every 5-6 starts), it sputters a little bit at 500 RPM and revs itself to ~2000 RPM before smoothing out like normal. The upset never lasts more than a second or two, but it is definitely noticeable. Is this normal? Anything I should check or do right away? TIA!
I have the exact same problem, but it does this every time I start the car. Aside from that, my battery meter fluctuates from 8 to 12 depending on if I have AC and stereo on..Also, when I brake, it dips into the red..it has died twice when I stopped. Could this be the alternator, the battery, the..???
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Old 04-14-2004, 12:16 AM   #2
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Do you have the original alternator on it?
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Old 04-14-2004, 03:52 AM   #3
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Yep.
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Old 04-14-2004, 02:29 PM   #4
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OK, so you probably don't have a suspect aftermarket alternator. Your electrical system sounds weak, it could be either the battery, connections, or the alternator. Is your aftermarket stereo a big draw?
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