appear new code P0401 after code P0106

625

Asked by alderbi Feb 04, 2017 at 10:25 PM about the 2009 Ford Explorer XLT 4WD

Question type: Maintenance & Repair

Ford Explorer 2009 4x4 XLT4.0L 6V
>>> (check engine light ON)
after computer test>>> was code P0106.
So i change
1: the EGR sensor,
2: MAP sensor,
3: car mechanic test Wires from EGR to Computer all good!!

after delete the codes, appear  new code P0401 ???
so where the problem now !!!????
please need a help !

7 Answers

189,395

What could cause the code P0401 - clogged or restricted EGR passages - faulty EGR valve - EGR valve stuck closed - problems with the DPFE sensor (Ford) - problems with hoses to the DPFE sensor (Ford) - problem with the EGR vacuum switching valve (Toyota) - clogged catalytic converter - carboned up EGR temperature sensor - vacuum supply issues at the vacuum-operated EGR valve - electrical problems with the EGR valve control circuit - engine computer problems

4 people found this helpful.
189,395

Ford: One of the common problems with many Ford vehicles that can cause the trouble code P0401 is a bad or damaged DPFE sensor (DPFE stands for Delta Pressure Feedback EGR). When diagnosing the code P0401 on a Ford vehicle, the DPFE sensor and the hoses to the DPFE sensor are usually tested first. The DPFE sensor and its hoses should hold the vacuum; the hoses should not be cracked or restricted. The sensor signal voltage should change when the vacuum is applied. Sometimes the DPFE sensor hoses could be reversed during a repair and this also could cause the code P0401. Often, replacing the DPFE sensor with an updated part could solve the problem, however, other components of the EGR system also need to be checked. This thread shows EGR system components in the 2.3L Ford Ranger. - The EGR valve could be sticking or the EGR passages could be restricted; both issues are very common. The EGR ports in the throttle body clog up very often too. If you are replacing the DPFE sensor, make sure the hoses are installed correctly and not crossed.

4 people found this helpful.
625

In Ford Explorer XLT 4x4 model 2009 ( 4.0L - 6V ) Where can i found the DPFE sensor (Delta Pressure Feedback EGR) ? see the pictures please and explain to me where can i found DPFE sensor throw the picture? I make colors in the picture to help us >>> Red arrow => EGR Green arrow => MAF sensor where is the DPFE sensor? near which color ?

5 people found this helpful.
625

until now not resolved !! and I change EGR with new .. but still same code P0106 & P0401 the wires are good So what can be the problem ???

2 people found this helpful.

Thank you gents.. I have the same problem. But what is the orange arrow and the highlighted in yellow item n the attachment please ?

Your Answer:

Explorer

Looking for a Used Explorer in your area?

CarGurus has 2,014 nationwide Explorer listings starting at $2,999.

Postal Code:

CarGurus Experts

  • #1
    OJ
    Reputation
    31,060
  • #2
    TransAm77
    Reputation
    7,890
  • #3
    Gene Arnett
    Reputation
    7,340
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
296 Great Deals out of 15,534 listings starting at $1,712
Used Ford Expedition
29 Great Deals out of 811 listings starting at $7,888
Used Chevrolet Tahoe
18 Great Deals out of 717 listings starting at $5,995
Used Jeep Grand Cherokee
109 Great Deals out of 3,274 listings starting at $4,995
Used Chevrolet Traverse
34 Great Deals out of 704 listings starting at $4,950
Used Toyota Highlander
24 Great Deals out of 719 listings starting at $6,495
Used Dodge Durango
45 Great Deals out of 2,288 listings starting at $5,500
Used Ford Edge
81 Great Deals out of 2,306 listings starting at $1,790
Used Honda Pilot
44 Great Deals out of 1,202 listings starting at $2,133
Used Toyota 4Runner
15 Great Deals out of 341 listings starting at $9,900
Used GMC Acadia
29 Great Deals out of 681 listings starting at $4,049
Used Chevrolet Silverado 1500
212 Great Deals out of 5,925 listings starting at $3,995
Used Ford Escape
155 Great Deals out of 4,531 listings starting at $2,995
Used Dodge Charger
41 Great Deals out of 602 listings starting at $4,888
Used GMC Yukon
18 Great Deals out of 736 listings starting at $5,998

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.