rough idle

Dale99SVT

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Sep 25, 2003
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N.C.
My car idles at 750 when it is at normal operating temperature. 750 feels like a rough idle like maybe its missing. If I turn the fan for the heater on, it idles at 800 rpms and i cant hardly feel it idle becasuse it is so smooth. When I bought the car almost new, you couldnt hardly tell it was even running. it always idled at 800 RPM, is there something I can check or set to get it back to idling at 800 rpms always. My car is a 99 Cobra. Any help would be appreciated, Thanks alot, Dale
 

Dale99SVT

Member
Established Member
Joined
Sep 25, 2003
Messages
94
Location
N.C.
I have 12200 miles on a set of Autolites. I recently rebuilt the engine and it has been running fine until about two weeks ago. The car drives fine, its just at idle with no acc. on, I can tell a difference in the way the engine feels at idle. I was thinking maybe the Idle Control valve? Any help appreciated,
Dale
 

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