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Discussion Starter #1
I have a new 2010 Cobalt XFE 5spd. manual. I have around 2000 miles on it how. When it is hot in the afternoon and it has been running for a while, it starts reving when the clutch is depressed between gear shifts. This happens even if I try to lug it a bit before I shift. Any thoughts?
 

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No, sounds like it could be an issue with your throttle body or something.
 

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Discussion Starter #5
Yeah, mine is running around 184-190 in the afternoon. That is when it acts up also. I'll check it out.
 

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Remove the throttle body and clean it really well. After GM went with this new DBW system...the electronic controlled throttle bodies get gunked up causing many different issues...starting, stalling, high/low/choppy idle, etc. I know this has nothing to do with engine temps but it might be the cause of your sporadic idle movements.
 
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