Low idleling high vibration...
azpunkguy
08-21-2006, 08:57 PM
:banghead: My 2001 Grand Am Idles at about 500 RPM and vibrates very rough when stopped. I think that I just need to adjust the idle however I am worried that there may be underlying issue that I am overlooking. Is it simply the idle?
BNaylor
08-22-2006, 01:09 AM
Welcome to AF.
The idle is not adjustable and controlled by the PCM module. Remove and clean the idle air controller (IAC) with carb cleaner and clean the orifice/seat at the throttle body. Also, you may have an engine vacuum leak causing the low idle and roughness.
The idle is not adjustable and controlled by the PCM module. Remove and clean the idle air controller (IAC) with carb cleaner and clean the orifice/seat at the throttle body. Also, you may have an engine vacuum leak causing the low idle and roughness.
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