Engine Miss/Chuggle - 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 03-05-2008, 12:14 AM   #1
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Default Engine Miss/Chuggle

I recently asked everyone about my QDM 4 fault but willwren gave me some information to allow me to rule that code out as a cause for my engine miss. The only code that I am reading now is for my PRNDL sensor which shouldn't have anything to do with the miss either.

But I am having problems with this miss when the engine begins to get warm and it continues once it is warm. Anything past 3/4 throttle and I am getting a miss/chuggle. Ever since this has started I also hear a high pitched squeal/humm coming from the engine compartment when I lightly press on the throttle. Also if I leave the car sit for over 20 minutes it takes forever to start/fire, usually 20-30 seconds of cranking.I was wondering if such symptoms are common with any certain problem.

I put new TR 55 spark plugs in last fall and the plug wires look to be in fine condition.

Thanks in advance guys.

1994 SSEi, CAI, TR 55'*, Nokya Yellow Headlamps, JL subwoofer, rebuilt trans
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