2008 4.0L IAC Location

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JWX109

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Morning All,

I'm either blind or its out of my sight range, but where is the IAC location on the 4.0L 6 Cylinder 2008 Sport trac?

Picture of aprox location would be great.

I want to get in there to give it a good cleaning.
 

EddieS'04

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I'm not sure but, the '08 model might not use an IAC. Idle may be controled by a drive by wire throttle.
 

swshawaii

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Ditto Eddie. No external or serviceable IAC used on 2007-10 second gen Sport Tracs or late 2004 thru 2010 third and fourth gen Explorers. Pretty sure this applies to all vehicles with electronic throttle control.

 

DILLARD000

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@swshawaii
Not sure if your 2005 V6~4.0L~SOHC had an IACValve originally, or if it was removed with your custom mods?
If you do have the IACValve,
there's a SetScrew on the back connector end, hidden under a plug\seal that can be removed+replaced;
here's info on how to adjust it for lowering the ColdStartFlareRPMs.
 

swshawaii

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Thanks @DILLARD000
My engine is stock with a modified Zabteck throttle body and SCT custom tune. Motorcraft CX2065 should be identical to what's there now. I'll go out later and check for a plug that covers a screw.

On EF several people mentioned removing the startup flare with another tune. When he was in business could swear I asked Torrie @ Unleashed Tuning but never got an answer.
 

DILLARD000

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It's the round black spot in the middle of the electrical connector end;
carefully cut it out with an exacto\razor knife; should find either an AllenHead or PhillipHead SetScrew.
May take several days+nights & cold morning starts to get it set where you like it.
I just wrapped the entire IACV body with electrical black tape over the SetScrew,
until I had it completely adjusted, then made a new SetScrew plug\cover with RTV.
 

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