5.4l EGR Valve replacement. Anyone have picture of engine?
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Junior Member
Joined: Dec 2007
Posts: 1
Likes: 0
From: Michigan
5.4l EGR Valve replacement. Anyone have picture of engine?
Hi all, I am new to the site and I just purchased a 2001 lincoln Navigator. When I bought it the check engine light was on displaying code P401 I think it was. I bought a new EGR Valve and planned on replacing it. Problem is when I bought the "how to" manual the engine pictures were different then my actual engine. Does anyone know where the EGR valve is on my truck? Anyone have a link to directions on how to replace it?
Technical Article Contributor
Joined: Dec 1997
Posts: 9,417
Likes: 11
From: Windsor,Ontario,Canada
Do you have a 2 or a 4 valve engine. Regardless you have to remove the splash shield to gain access to either one.
JMC
PS. Why are you changing the valve? A P0401 code can be caused by more things than a faulty EGR valve.
JMC
PS. Why are you changing the valve? A P0401 code can be caused by more things than a faulty EGR valve.
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Yea that's not an EGR valve fault - PO402 is a popet valve fault (EGR valve).. PO401 is usually the EGR's DPFE Sensor -(Bad Sensor fault) It could be a dirty throttle body elbow port as well.
Check out this thread -
https://www.f150online.com/forums/sh...d.php?t=293714
Check out this thread -
https://www.f150online.com/forums/sh...d.php?t=293714
Last edited by jbrew; Dec 7, 2007 at 04:18 PM.
