OK, I know the IAC is on the throttle body. I cleaned the butterfly in my tb, but I am not sure what is the IAC. I also want to know what part is the EGR? I assume the EGR is where the large metal pipe from the exhaust connects to. The service cd won't let me search for it and I am getting lost. Pictures would be great or a physical description would be good too.

Thanks.

 

Look straight down directly under the passenger side windshield wiper post. It has a hose feeding out to the left.

 

dnale,

Here is a pic;

http://www.fordtruckworld.com/showow...s=1&album=3309

Regards

JMC

 

I don't remember seeing anything like that! I will have to take a closer look. I didn't remove anything off the intake when I worked on the head, so I really only looked at the vacuum connections. Am I right on the EGR?

 

dnale,
Yes the EGR is the one with the long pipe.

On your CD; go to Groupe 3 POWERTRAIN
Click on section: 303-01B ENGINE 4.6L and 5.4L
Click on DESCREPTION AND OPERATION
Click on Engine Component View and scroll down till you see 4.6L Engine Induction System Components. Number 5 is the IAC and number 10 is the EGR valve.

Regards

Jean Marc Chartier

 

HI!... This is the EGR VALVE :

https://www.f150online.com/galleries...4-794-6967.jpg

 

You guys are great. How tough is the IAC to remove? Will I need a new gasket? Looks like just two bolts. (Of course they are blind and under the dash.) I didn't ever see that part on the cd.

 

The picture I posted was of mine. I took it off and cleaned it just befor scanning it this morning. The two bolts holding the IAC are 8mm. If you are careful you can reuse the gasket.

Regards

Jean Marc Chartier