Quote:
Originally Posted by gomarlins3
When you say a 'stumble', does it drop below 1000 RPMs when you come to a stop/idle? If so, this is a common occurrence and can happen with or without the AC on. The reason some people believe it is due to the AC is it usually happens when it is hot. In my research (as limited as it is), it is a symptom of heat soak. The engine pulls in some hot air and it causes the engine to drop below it's usual idle level. This is some what common and according to xviper (an S2000 guru), it is nothing to be really worried about.
If it is something other than what I just described, I can't help you, sorry.
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That basically is the problem i have and it makes complete sense. its not a very big stumble just a bout 100-200 rpm half second drop. so that may very well be my "problem". i think i can handle the stumble if its going to be considered normal. thanks