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PKRWUD · 11-24-2004, 10:00 AM

Your IAC solenoid is the can shaped item bolted to the throttle body. After the engine warms up, unplug the electrical connector going to it, and see what happens. If the idle smooths out, the IAC needs to be cleaned or replaced.

Have you checked for any codes?

11-24-2004, 10:00 AM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Re: 5.0 idles up and down when warm Your IAC solenoid is the can shaped item bolted to the throttle body. After the engine warms up, unplug the electrical connector going to it, and see what happens. If the idle smooths out, the IAC needs to be cleaned or replaced. Have you checked for any codes? __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!