Possible causes – IACV-AAC valve harness is open or shorted– IACV-AAC valve poor electrical connection– Faulty IACV-AAC valve Tech description There is a factory service bulletin for the following Ford Models: 2005-2007 Ford Crown Victoria2006 Ford Mustang, Mustang2004-2006 Ford F-1502005-2006 Ford E-350, Ford E-450, Ford F-Super Duty2006-2007 Ford Explorer Sport Trac, Ford ExplorerFord Factory Service…