Question about 2002 Ford Explorer

1 Answer

2002 ford expl. v6/4.0 code p0401egr flow insuf.

Is this a problem a novice mechanic(me) can address or should I take it to a mechanic. I have read some entries that have said it is simply replacing a valve.

Posted by on

  • 2 more comments 
  • hamilton523 Jun 21, 2009

    66 chrgr, where is the dpfe sensor? thanks

  • hamilton523 Jun 21, 2009


    got the part, letting engine cool down, does the sensor just pull off of the rubber boots after disconnecting the electrical. thanks

  • hamilton523 Jun 22, 2009

    66 chrgr- installed, cleared the code & now wait & see after some on/off engine cycles to make sure the code does not come back-thanks. do you have a solution for "door ajar" light that stays on & interior lights that sometimes stay on-same ford explorer. thanks

  • hamilton523 Jun 22, 2009

    66 chrgr- installed, cleared the code & now wait & see after some on/off engine cycles to make sure the code does not come back-thanks. do you have a solution for "door ajar" light that stays on & interior lights that sometimes stay on-same ford explorer. thanks



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,011 Answers

You have a bad DPFE sensor that controls the back pressure on the egr valve this is a simple fix and does not cost alot.dodn't let some one replace the egr valve because this will not fix the problem:]

Posted on Jun 21, 2009

  • 1 more comment 
  • mike loshbough
    mike loshbough Jun 21, 2009

    on the drivers side of the engine toward the top if you by one then you can see what it looks like which will make it easier to locate.

  • mike loshbough
    mike loshbough Jun 21, 2009

    yes it does also you will have to have the computer cleared,the parts store should do this for you.

  • mike loshbough
    mike loshbough Jun 22, 2009

    yes most likely you have a bad drivers door latch there is a switch built in that sends a signal when the door is open. the switch is getting weak so replace the door latch your will have to take off the door panel though



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2002 Ford Taurus has no reverse or forward gears everything I've read says its the torque converter could it be the shift solenoid or something easier to fix than the transaxel or torque converter?

Do you have any OBD codes? If so, what are they? If not, it is probably something mechanical like a bad torque converter or valve body.

Sep 16, 2013 | 2002 Ford Taurus

1 Answer

I have a 97 ford escort 4 door, that just read code P1443 Is there anything I can do to fix this since the mechanics want to charge so much?

It is common for the EGR flow sensor to fail, which may be the cause of your problem, might be the EGR but not likely. try cleaning the EGR and replace the flow sensor

Sep 06, 2011 | 1995 Ford Aerostar

1 Answer

I have a 2003 Ford Explorer the o/d light is blinking. I had diagnosis tested ran and came up with PO73 invorrect gear 3 ratio, PO745 Pressure control solenoid malfunction and PO745 Pressure control...

Error Code P0745
  • If the error code checker returns a P0745 code, it is indicative of a transmission issue. Error codes in the 700s refer to transmission problems. The P0745 error code refers specifically to a malfunctioning pressure control solenoid. This should be checked by a mechanic as soon as possible.

  • Read more: Ford 2002 Explorer Error Codes '

    Feb 27, 2011 | 2003 Ford Explorer

    1 Answer 2002 ford expl. showing

    Replace your Pressure Control Solenoid, or take it to a shop and have them replace it. This can cause both of the codes you are experiencing.

    I’m happy to help further over the phone at

    Jan 12, 2011 | 2002 Ford Explorer

    1 Answer


    Exhaust gas recirculation flow insufficient detected.
    Maybe you got a bad DPFE sensor, or the pintel inside the egr valve is not opening all the way causing the insufficient flow.

    May 14, 2010 | 2002 Ford Ranger Regular Cab

    1 Answer

    Gasket maker for oil pan

    While you can use hi-temp silicone ,a much better solution would be ,to purchase the proper gasket,for the application.
    It will take the novice mechanic ,about three hour's to complete the task .
    Read all of the directions ,and if need be, purchase a good shop manual.

    Mar 06, 2010 | 2000 Ford Taurus

    1 Answer

    My 2002 Ford Explorer XLT won't start. I will

    This looks like typical Ford Issue of clogged Fuel filter or computer controlling the sparks on your spark plugs also
    directs the timing so it could also be a sensor that works
    with the timing of the Sparks. This assumes that you have enough fuel and good spark plugs.

    Oct 19, 2009 | 2002 Ford Explorer

    2 Answers

    CODE PO102 after Mass Air Flow Sensor replaced

    Most faultcodes don't disappear automaticly, the have to be 'reset' manually after repairing. It sounds like the code didn't get erased after replacing the MAF. You could try to disconnect the battery for 10 minutes (disconnect and reconnect the negative (-) pole), which should erase the code.

    Whenever the engine light still comes back on after that, there probably still is some (other) problem ...

    Aug 24, 2009 | 2002 Pontiac Grand Prix

    1 Answer

    '96 Ford Expl. Door Locks Problem

    When this happened to my Explorer, I had to replce the lock mechanism. It was not very hard to do and the part only cost about sixty bucks from the dealer.

    Jun 28, 2008 | 1996 Ford Explorer

    Not finding what you are looking for?
    2002 Ford Explorer Logo

    Related Topics:

    363 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Ford Experts


    Level 3 Expert

    81400 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22326 Answers

    gerry bissi

    Level 3 Expert

    4376 Answers

    Are you a Ford Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides