88MJNC Posted March 20, 2012 Share Posted March 20, 2012 Air Idle Control Valve What does it do? Also what does it affect when it is not working right? Link to comment Share on other sites More sharing options...
Pete M Posted March 20, 2012 Share Posted March 20, 2012 it adjusts airflow when the throttlebody is closed to maintain a consistent idle speed. :thumbsup: Link to comment Share on other sites More sharing options...
88MJNC Posted March 20, 2012 Author Share Posted March 20, 2012 will it cause fuel problems and a not start isue Link to comment Share on other sites More sharing options...
cruiser54 Posted March 20, 2012 Share Posted March 20, 2012 will it cause fuel problems and a not start isue Not really. Please describe your symptoms and let's go that route. Link to comment Share on other sites More sharing options...
88MJNC Posted March 20, 2012 Author Share Posted March 20, 2012 cruiser went to the dealer to look at my truck and find out the road we need to take with it. So the dealer said the truck would not start on it own without spray carb cleaner into it but when it would crank it would idle very high so i stuck my finger into the air idle control valve and opened it up a bit and asked the repair man to crank it up. Bam it cranked right up and idle perfect, asked him to cut the truck of and we cranked the truck 10 -15 times. The guys in the shop could not believe that doing that would make a change. Asked the dealer to keep checking it through out the day to make sure it would still work as of closing time it is doing fine. Why would this make the truck crank when it would not crank on its own and also not have the high rev . Link to comment Share on other sites More sharing options...
cruiser54 Posted March 20, 2012 Share Posted March 20, 2012 How did you stick your finger into the IAC valve and open it? You talking EGR valve? Link to comment Share on other sites More sharing options...
88MJNC Posted March 20, 2012 Author Share Posted March 20, 2012 the thing between the DS headlight and the airfilter that has a vacum hose attached to it and has a flapper valve inside it you can stick your finger or long screw driver inside it. Not sure what it is called thought it was call a AICV could be wrong Link to comment Share on other sites More sharing options...
cruiser54 Posted March 20, 2012 Share Posted March 20, 2012 The thermostatic valve that controls whether you get heated air from the exhaust manifold area or cold air from behind the grille? Link to comment Share on other sites More sharing options...
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