1999 Renault Scenic idling speed rising!

Car: Renault Scenic
Year: 1999
Variant: 2.0 man
Categories: Running Rough, Starting & Power Loss
hi there, car runs ok, untill working temp,
reached! Idling speed rises to about 2000 rpm when at junctions, no warning lamp indication!
settles down quickly on normal driving!
it just happens when stationary before moving off ??
Posted: Jul 25, 2011 (12 years ago)
Check / clean idle air control valve. (IAC, Stepper Motor )and throttle body .
Posted Jul 26, 2011 (12 years ago)

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