Question about 2001 Mercury Grand Marquis
Remove the appearance cover. Looking from the front of the car towards the windshield it is in the back left section in front of the wall, has a connector and two vacuum lines.
Posted on Feb 17, 2013
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Posted on Jan 02, 2017
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
well if it is the 3.8 it is on the side of the plentum its alittle black box with two hoses and a wire conector if v-8 will be on the back of motor and will be a little silver box with the 2 hoses and wire connector and the sensor is called D.P.F.E. sensor at ford
Posted on Aug 15, 2009
IF you go to autozone.com and put in your vehicle in a picture of that component will be pictured, My reference material states that a P0402 is EGR excessive flow detected also check for piece of carbon stuck in EGR or pintle sticking.
Posted on Nov 01, 2009
First you need to know what to look for. Here's a link to a auto part web site: http://www.autopartswarehouse.com/details/QQMercuryQQGrand_MarquisQQMotorcraftQQEGR_ValveQQ20032011QQMICX2060.html
The EGR valve takes exhaust gases and inserts them into the intake. Generally the EGR is near the center of the engine toward the back. It should be connected to the intake manifold and a pipe that comes from the exhaust manifold. It's not terribly difficult to change.
Posted on Jun 15, 2012
SOURCE: I have a 2002 Mercury Sable with the 3.0 DOHC engine. The check engine light came on and the code read EGR system pressure feedback. I have put in a new EGR valve, pressure feedback sensor, solenoid,
The vacuum lines are incorrect,that or the EGR solenoid is restricted,causing the EGR to open
Posted on Sep 26, 2012
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