2001 Ford Expedition

The EGR is located on the intake manifold. It will take aprox an hour to complete. THere are only a couple bolts that hold it in place. A new one cost around 50 to 100 dollars. Yours may just need cleaned. Carbon builds up in them and then the valve doesn't work properly, so you may want to try that first. Also, make sure where it attaches to the intake is free of carbon as well as the vacuum hose.

Here is a picture of the part you are looking for:

Let me know if you have other questions.

Joe