Replacing idle air control valve
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New User
Joined: Feb 2009
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From: Conway area, NH
Replacing idle air control valve
How much of a job is it to change my IAC valve on my 99 f350 v10. Its the next step in my quest for curing a rough idle/skip problem. My mechanic is on spring break and I can make the time. I'm not a car mechanic but I know my way around my toolbox. Any advice would be terrific.
More Turbo
Joined: Feb 2004
Posts: 704
Likes: 40
It's basically 2 bolts and one wire connector. On my excursion, it's on the back of the throttle body so it's not convenient to reach but should be accessible after removing whatever cover, hoses, etc are in the way. Careful, some of the hoses are coolant hoses so try not to disconnect those. If there is a fault code set, you'll want to erase it with a scan tool, or by disconnecting the battery, or removing the appropriate fuse. If you discon. the battery or pull the fuse, the ecm will have to re-learn so it may run different at first.
"Rough idle/skip" sounds more like an ignition problem though. IAC valve usually causes a stalling problem.
Lou Manglass
"Rough idle/skip" sounds more like an ignition problem though. IAC valve usually causes a stalling problem.
Lou Manglass
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