egr insufficient flow
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Joined: Aug 2004
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egr insufficient flow
2001 E.B. Expedition,
Help, The truck is like brand new,only has 14000 miles on it.Tried replacing egr
valve but code p401 came right back.I read after the fact that its usually
the DFPS.The Haynes book I have shows the location of the part,but ford
must have changed the part.I can't find it .I found the EVR which has the two
vac lines on it,with one going to top of egr.Where is this the DFPS? Will any of
that fuel cleaner work.I noticed they make a greased lightening brand that
supposed to work good.Is this normal for such low mileage? I found the part
online being called egr pressure sensor at $65.00.Didn't know if I should order
it or if there was another cure?
Thanks
Dave
Help, The truck is like brand new,only has 14000 miles on it.Tried replacing egr
valve but code p401 came right back.I read after the fact that its usually
the DFPS.The Haynes book I have shows the location of the part,but ford
must have changed the part.I can't find it .I found the EVR which has the two
vac lines on it,with one going to top of egr.Where is this the DFPS? Will any of
that fuel cleaner work.I noticed they make a greased lightening brand that
supposed to work good.Is this normal for such low mileage? I found the part
online being called egr pressure sensor at $65.00.Didn't know if I should order
it or if there was another cure?
Thanks
Dave
New User
Joined: Apr 2004
Posts: 9
Likes: 0
Bad Riubber
My 1999 Ford Expedition is giving codes P401,P402, and P1401. I think it was 2 preformed 90 deg segments. Apparently over time and exposure to chemicals the rubber looses its integrity. These 90's are collapsing at the bend. Although they appear to have a slight dimple, They completely collaps when the engine is turned on. I've run accros several vacuum hoses that appear to disentegrate. When I touched them a black powder comes off on to my hands. These 90
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Da_Lariat_Chariot
1987 - 1996 F150 & Larger F-Series Trucks
7
May 29, 2016 12:00 AM
MeanMark87
1997 - 2003 F150
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Jun 14, 2014 09:58 PM
54, 97, code, dfps, egr, expedition, flow, ford, good, insufficent, insufficient, p1401, p401, sensor, works
