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  1. G

    P0401 Help!!!!! 2004 Ford Explorer 4.0

    Thanks, I replaced the EGR and the light went out and everything is fine.
  2. G

    P0401 Help!!!!! 2004 Ford Explorer 4.0

    Hi all, I am totally confused (which is not hard). I have a P0401 code on my 2004 Explorer with a V6 4.0 engine It has 100,000 miles. The car runs great. My confusion is how do I fix it. I have heard DPFE replace or EGR replace and also differencial pressure sensor clogged. I took the EGR...
  3. G

    2004 Explorer check engine soon light with a code P0401.

    2004 Explorer check engine soon light with a code P0401 Thanks Mountain Man for the reply. Can you help me to identify where those parts are and the areas you said I should check. Thanks
  4. G

    2004 Explorer check engine soon light with a code P0401.

    I have a 2004 Explorer with a Check Engine Light Code of P0401, it says EGR Flow Insufficient. Do I need to replace the EGR, some of the forums said the DPFE needs to be replaced, however I think the DPFE is built into the EGR on this model. So what do I need to do? Replace the EGR or is...
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