I got a 2001 Ford Explorer Sport Track....I checked it at auto zone and the computer said EGR Flow Insufficeint...so I bought the DPFE Sensor(4U7Z-9J460-AA sensor).....Can I put it on myself or does a mechanic have to do it?.....what do I have to do to put it on myself(do I have to disconnect the battery or something)??...please help...I dont wanna pay for something I can do myself

thanks

 

...Welcome to Ford Truck Enthusiasts! Please read the Guidelines, it will help you to navigate through and understand this site.
Stick around someone will be by shortly to answer your question.
We are happy you have chosen the best source for Fords!

Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.

 

Fairly simple to replace. Just unbolt it, remove the wiring plug, swap the hoses, and reset the computer (disconnect the battery will also work).
Be advised, there are 2 styles to the sensor. On the original, it is a metal case with the vacum hoses arranged front/back. The revised style is plastic case with hoses side to side. From all I hear, either will interchange and some people even swear the plastic housing unit is better.

After you swap it out, take the rig out for an extended drive ( 15-30 minutes) to allow the computer to re-learn the engine and run its diagnostic monitor routines. If the part was the culprit, you should know after the drive.

Dialtone

 

Hello Everyone! This is my first time posting here and I hope that my input helps.

I have a '02 Expedition with a 4.6L with less than 40k miles on it and I had a similar experience last week. My check engine light came on and I did the same thing by hooking up an OBDII meter and found that I had two errors. The first said (or words to this effect) that my egr system didn't have enough air flowl, and the second error said that my egr system had too much air flow. With that, I reset the faults and drove home to take my egr valve off to check it out. The valve was fine, but I sprayed a little WD-40 into it just for good measure and I put it back together. The next day, the light came on again, and so I read through the manual and it seemed that I had three units to consider: (the terminology may not be exact) the vacuum generator/regulator, the egr valve, or the air flow sensor. The resistance reading from the vaccuum regulator checked out fine, so the next logical part to swap was the oxygen flow sensor. And hey, what do you know? After swapping it out (btw, the original was plastic and so is the replacement), We took a short trip and logged over 100 miles and no service engine light came on! The 4U7Z-9J460-AA sensor seems to be what failed. (Does anyone have much experience with these sensors, and should they fail so soon?)

But, I bought my sensor from the Ford dealer because I wasn't sure to trust the other auto parts stores for exact compatability. Btw, after taxes, I paid about $70.00 at the dealer, and I'm wondering if I would have realized a significant greater savings by purchasing at AutoZone or some other autoparts store?

Oh yeah, if I misnamed something or something here needs correcting, please let me know. I'm always happy to learn something new!

I hope that this lends a little more experience on this issue.