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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 03-18-2007, 07:56 PM   #1
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Default 97SE jerky jerky

Hi all,

Car runs great when cold, but when car is driven for about 30 minutes, car starts jerking, shuttering when I try and accelerate. Also, If I'm going 65 steady, and starting to go up a hill, I press down on the gas and it starts to shudder again. I have to let off the pedal and push back down for it to shift down and move. Kinda freaky really. Anyone have any idea?

thanks

wade
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Old 03-18-2007, 07:58 PM   #2
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Sounds like coils or plugs and wires. When is the last time it had a tune up?
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Old 03-18-2007, 08:09 PM   #3
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What car are you talking about?
Have you checked for any codes? Not all codes will set an engine light so get them read even if its not on.

You should put your car info in your sig so you don't have to keep repeating it.

First guess would be tuneup and make sure the plug wires aren't near the o2 wires by the firewall
Second guess would be battery & ground connections.
Third guess would be the dreaded intake leak.
Forth would be MAF sensor or connections.

Again these are just guesses. Better advice will come with more info.
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Old 03-19-2007, 10:12 PM   #4
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opps..sorry

It'* my 97 3.8 SE Bonnie.

Changed the plugs already, but not the wires.

Haven't read the codes either.

WF
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Old 03-19-2007, 11:27 PM   #5
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Quote:
Originally Posted by Indiana911
opps..sorry

It'* my 97 3.8 SE Bonnie.

Changed the plugs already, but not the wires.

Haven't read the codes either.

WF
If you don't know how old the wires are, replace them.
Check your coils using the procedure in TECHINFO.
Please put your year and trim level in your signature by editing your profile. It'll help us help you.
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