Question about 2004 Ford F150
For a new Body style 2004 ( not a Heritage or Lightning ) there is not an IAC.
The IAC functions are now part of the throttle by wire operation in the 2004-08 MY F-150s.
The Throttle Plate Position Controller is part opened by the PCM ( actually a chip embedded in the PCM specific to this function ) when the engine is at idle and the throttle is off ( i.e. not be pressed down ).
If you are talking about a 2004 Heritage or Lightning ( the same body style as the 99-03 MY ), the IAC is on the back of the throttle body, under the plastic throttle body cover.
Not too sure which 2004 version you are talking about, just wanted to cover both 2004 options for the location on the IAC.
Posted on Mar 24, 2011
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Posted on Jan 02, 2017
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