dodgethis Posted March 13, 2009 Report Share Posted March 13, 2009 Hey I thought I just ask this random question. I didn't know if any of ya'll had experienced this when stopped. The car (98 Lumina) has been running fine, but i notice something weird every time when I come to compelete stop at a red light. When the car comes to a stop i then feel a very rough idle that comes in a wave from what feels from the steering wheel to the cabin of the car. I don't know if maybe the engine is readjusting from the 1 - 1.5 rpms at 45mph and coming to a complete stop. Has anyone has a similar situation, and not only that, but what the hell does it mean? 3100, at 72,000. Quote Link to comment Share on other sites More sharing options...
89SupremeCutty Posted March 13, 2009 Report Share Posted March 13, 2009 does it happen when you have the defrost or a/c on? Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 13, 2009 Report Share Posted March 13, 2009 im gonna take a wild guess and say IAC isn't reacting fast enough? Quote Link to comment Share on other sites More sharing options...
dodgethis Posted March 13, 2009 Author Report Share Posted March 13, 2009 does it happen when you have the defrost or a/c on? No, nothing was on just radio and windows down. im gonna take a wild guess and say IAC isn't reacting fast enough? What happends if the IAC goes bad, i know that isn't a hard fix to replace but what could happend? Quote Link to comment Share on other sites More sharing options...
91LuminaEuro Posted March 14, 2009 Report Share Posted March 14, 2009 I have this problem when the A/C is OFF!? Does this mean someting, because its been bothering me since i was 16 and dropped in the Jasper engine...and its never gone away no matter what i do... Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 15, 2009 Report Share Posted March 15, 2009 maybe the ground for the iac is bad? Quote Link to comment Share on other sites More sharing options...
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