High Idle - FIXED - 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 10-08-2008, 07:15 PM   #1
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Default High Idle - FIXED

well, the bonneville had this issue of idling so high that it could sustain speeds of 45 mph without touching the pedal. I thought it was a stuck throttle body and i went to clean the throttle body and realized that the throttle body gasket was rotted away! so, new gasket and car is running much smoother than before.

hopefully this helps fuel economy too!
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