How do you replace the DPFE sensor on a 2001 Ford Escape?

Answer 1

3.0L Escape DPFEMy girlfriend's 2002 Escape just had this issue. It was throwing a P0401 EGR Flow Insufficient code at about 40 mph. Hers is a 3.0L V-6, hopefully yours is as well. The sensor is on the EGR tube from the exhaust manifold to the intake. There are 2 parallel smaller tubes that rise vertically from it, directly in line from the throttle body to the firewall. At the top of that is a little black box with 2 hose nipples on the bottom and a 3-wire electrical connector. That is your DPFE sensor (at least on the 3.0). To replace it, unplug it, pull the hoses from the pipes, transfer the hoses to your new sensor, slide the hoses and sensor onto the parallel tubes, and plug it in. Clear your code and you're done.

Make sure you get a Motorcraft sensor. The aftermarket ones usually do not work. You can get them on Ebay cheaper than from the dealer

The Motorcraft DPFE sensor is 4U7Z-9J460-AA. This is an upgrade from the original sensor which was a bit smaller and had the stock number 2FIE-9J460-AB.