Weird accel - 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 09-25-2003, 08:41 PM   #1
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Default Weird accel

Whats up with my car??? When I do normal accel then it does fine.. but when I get on it a lil it does a *wah wah wah wah wah* thing like its humping the road. Any ideas?? Ive been patient with it but am getting annoyed.
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Old 09-25-2003, 09:11 PM   #2
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Scan for codes. Sounds like an ignition problem to me. Assuming your plugs and wires are still good, do the coil pack troubleshooting and code scanning in Techinfo.
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Old 09-25-2003, 10:01 PM   #3
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Mine did the same thing one night out of nowhere. I was racing it a bit before and it ran fine. Then it started hesitating and basically doing what you described. I turned the car off and started it again and it was fine, and has been fine ever since.
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Old 09-30-2003, 08:39 PM   #4
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No codes...
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Old 09-30-2003, 10:13 PM   #5
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Idle'* fine. Starts fine. Revs fine. But under accel load it does ... well say "wah wah wah wah wah" thats what it sounds like. Sort of like I cant accel unless I slam the pedal or let off a bit.
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Old 10-01-2003, 05:02 PM   #6
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sounds like a tranny issue, i went through this one already, i replaced all coils,plugs,wires, and ended up finding out it was the valve body inside the trans, take it to a tranny shop and see if they can help u out, after exhuasting all other options first. good luck.
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Old 10-02-2003, 10:01 AM   #7
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How much was that???
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