Stutters at stoplights - 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 11-16-2004, 01:17 AM   #1
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Default Stutters at stoplights

Ok I just got my car last week, and I'm still trying to figure out any bugs that are wrong with it. I already changed the plugs and wires. Neway the problem... The car drives perfectly fine, and it hows power and get up, until you get to a red light. Then it starts to stutter. I'm think maybe a coil. If not that a hose may be off somewhere... Anybody agree with either of these? Or could it be an O2 sensor?
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Old 11-16-2004, 01:32 AM   #2
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What? You've had that car forever. Didn't someone rearend you? You get a new car? I'm confused.....
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Old 11-16-2004, 03:59 AM   #3
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This is my New bonne I'm talkin about.
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Old 11-16-2004, 01:30 PM   #4
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Wat year is it? The 93? Just wondering if it'* the IAT?
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Old 11-16-2004, 01:43 PM   #5
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Mine used to do that some, too, til I tightened the bolts that hold the throttle body on...
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Old 11-16-2004, 02:56 PM   #6
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the wire on the IAT is hooked up. I don't know about the TB. Surprisingly it is clean. So it saves me time on doing that. it also doesn't seem like it has a much compression. I think I may have a exhaust leak somewear causing it to lose some power. I don't know I need to pull it up on ramps and jack the rearend up and check it all over since I bought it from a private seller.
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Old 11-16-2004, 03:53 PM   #7
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Do you have a ohmeter?? Does the gurus here know if the IAT sensor is the same for 93 and 97?? IF so.. I will email you something just to ensure it'* not the IAT sensor. I have researched a lil into the IAT sensor as it will not throw a SES if it'* off calibration.. it will only throw SES if it'* open or shorted.. which means it has completely failed. I don't think it would be your issue.. but meh.. at least you know for sure that it'* not contributing to it.

MOS brought up a good point too.. if the gasket is leaking air pass the TB it might have similar results.

I'm assuming you don't have your MAF screen removed correct?
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Old 11-16-2004, 04:27 PM   #8
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My car does the same thing once in a while. . .

-Brad
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Old 11-17-2004, 09:56 PM   #9
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An EGR sticking open will cause a rough idle.
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Old 11-17-2004, 10:06 PM   #10
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Mine would do the same thing REAL bad until I cleaned the MAF sensor and the TB an IAC then it only does it when the motor get'* really hot, because the cooling fans only work on highk, the Low speed is burned out. But when my engine gets really hot (220-230) sitting in a parking lot, the heat soak starts making my car stutter until I can get the temps back down to 195-205.
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