2003 Ford Taurus Park Idling Operating Temp Only C On Car S Idle Rpm Drops

2003 FORD TAURUS
100,050 MILES
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in park or when idling at operating temp and only with a/c on, car's idle RPM drops then returns to correct idle RPM alternately. A/C clutch also seems to have grinding sound when not engaged. (Not sure if related) I suspect IAC bad but, want second opinion. A/C issue being the sealed clutch bearing.
Nov 2, 2012 at 2:53 AM
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ASEMASTER6371
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i agree. replace the iac and make sure you set base idle to 500 rpm with the connector unhooked

Roy
Nov 2, 2012 at 3:00 AM
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