EGR Valve

I have a 2001 Explorer Sport.. The Engine light came on and I had it tested at Autozone and found out it means the "EGR flow is insufficient". I cleaned the EGR valve and had the code reset. Well the engine light came back on. Any other things I can try????

I have a 2001 Explorer Sport.. The Engine light came on and I had it tested at Autozone and found out it means the "EGR flow is insufficient". I cleaned the EGR valve and had the code reset. Well the engine light came back on. Any other things I can try????

Good old AutoZone.... their diagnostics are worth every penny you paid.

The usual culprit (I'm assuming... what a nasty word... that AZ retrieved a P0401) is the DPFE sensor... there are other possibilities but, without proper testing.....

IIRC, there is a customer satisfaction program extending the warranty period on tube mounted DPFE sensors. Your Ford dealer should be able t run OASIS on your VIN to see if your unit qualifies.

not my thread, but can we run some sort of warranty check ourselves. I like my dealer, but they have done some hoaky things to me in just trying to get a simple price for a service in the past. I'd like to know before I go in there if I have coverage.

You can go to

and enter the message forums. Post in the OASIS forum including your complete VIN and any symptoms and or codes.