Does anyone have a picture that they could post or try to tell where these are located on a 99 5.4???
Thank you!

 

HI!... The IAC is located on the back side of the TB ELBOW. It's at the very back towards the firewall. It's shiny. The EGR is located right next to the TB and TB ELBOW on the driver's side of the engine compartment. It's usually rusty because the heat peels off the factory paint. It will have a steel tube running from it down to the driver's side exhaust manifold. Hope this helps you out.

This is a pic of the EGR. (the saucer looking thing)

The IAC is the shiny thing in the foreground with the wire harness.

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

 

Thanks Neal. I appreciate the info. I am planning on purchasing a chiltons manual or something like it so I can figure all of these gadgets out. Thanks again!