Question about 2002 Mercury Grand Marquis

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20002 mercury grand marquis stopped while driving. Had it towed and it started right up at dealer. Drove home. Auto zone did diagnostic and said dpfe (egr pressure sensor) bad. Replaced. check engine light remains on?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

csmock132
  • 4669 Answers

SOURCE: DPFE EGR Pressure Feedback Sensor Issue - 2001 Mercury Sable

The DPFE sensor is a very common failure on all Ford models. Just have the sensor replaced. Or do it yourself. It is very easy to change you can do it in 10 minutes.

Posted on May 20, 2009

  • 1 Answer

SOURCE: My problem is finding the DPFE on my 1996 Mercury

Dear FixYa,
Thanks for the past help but at $10-$20 a question keeping my old car running can get expensive. And it would be an abuse of your help to send in a long, multi problem message to get away with one payment. Yes, you are cheaper than going to a commercial garage but the point of using the internet is to find the best and cheapest.
If you ever decide to switch over to a diffeent business model with 6 month or one year subscriptions please do include me in your mailing.
Thanks,

Posted on Jun 23, 2009

bonedivers
  • 1140 Answers

SOURCE: P0401 code Mercury Cougar 2000. DPFE sensor?

Yes it will. Clean out all the ports for the EGR valve check PCV valve if equipped. Vacuum lines can cause this problem also

Posted on Jul 22, 2009

  • 1 Answer

SOURCE: 2002 Grand Marquis DPFE and CLEN EGR Ports

where is the dpfe on a 2002 grand marquis

Posted on Jul 25, 2009

  • 1986 Answers

SOURCE: how to remove the egr valve on a 1993 mercury

Jack up the passengers side of the car, get a 1 1/16" wrench break loose the fitting to the manifold, hold a 24 mm wrench on the fitting to the manifold, loosen the flare nut on the tube. Then using a 10 mm socket, about 2 inches long, loosen the two nuts under the EGR valve, then take the both out, remove the vacuum hose to the top of the EGR valve, and the sensing line from the small tube. then completely remove the flare nut from the orifice fitting on the manifold. BE CAREFUL with the tube, do not bend it or break it, you may find PB blaster useful the night before on a cold engine loosen these fittings. Once the EGR valve is out, remove the orifice out of the manifold, remove the tube from the EGR valve, again be careful, mark the tube to EGR position before pulling this off, because the top fitting to EGR needs tightened before you put it back in, it will make the lower fitting difficult if you do not line it up right, dry fitting from under the car is helpful, mark it, and then tighten the top. Clean out the tube, be careful not to bend the little tube, either inside or outside the larger tube, it sticks out inside. Clean the orifice, clean the manifold face carefully not to score it, check for blockage there too. Apply anti-seize to the orifice, put it back in the manifold, then apply anti-seize to the bolts for the EGR valve, and the flare nuts both ends. Apply some silicon to the EGR valve face, just enough to hold the gasket in place, put the new gasket on, start the bolts two turns in the gasket, it will hold them in place, then start them in the manifold, then start the lower flare fitting to orifice, tighten the top bolts, and then the flare nut, connect the vacuum line, connect the sensing line. I just recently did this process, it works, if have other EGR issues, the valve is the easiest.

Posted on Oct 13, 2009

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First go to a independent auto shop to get a price will be much less, however it is a problem getting to some egr valves so it takes time and that costs money. The egr valve can be cleaned but you have to know how to remove it, but they most likely quoted you the price of a new DPFE and New EGR valve so that’s a little more than half the cost the rest is labor. if you want to do it yourself by a hanes manual or get a subscription on alldatadiy.com to do it your self.

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