6.7 dies while towing
Laughing Gas
Joined: Jan 2024
Posts: 849
Likes: 464
From: Up in Texas
I have had this truck to 2 separate Ford Dealers, both of which cannot find a code stored on the computer. I'm not sure if the code is somehow clearing itself, but 2 separate "Master" diesel techs seem to be baffled at what I am experiencing. These are older gentlemen who look like they have been doing it for a while.
I read on another forum that replacing the driver's side fuel rail might solve my problem, but no reason was given as to why. I looked this part up , and it looks like an OEM replacement is less than $200. https://www.getoemparts.com/oem-part...EaApiPEALw_wcB
Do you think replacing the fuel rail is worth a shot? What would go wrong on a fuel rail, and why the driver's side specifically?
I did have the fuel filter changed right before this problem started happening. Do you think swapping a fuel filter again would be a good course of action?
I read on another forum that replacing the driver's side fuel rail might solve my problem, but no reason was given as to why. I looked this part up , and it looks like an OEM replacement is less than $200. https://www.getoemparts.com/oem-part...EaApiPEALw_wcB
Do you think replacing the fuel rail is worth a shot? What would go wrong on a fuel rail, and why the driver's side specifically?
I did have the fuel filter changed right before this problem started happening. Do you think swapping a fuel filter again would be a good course of action?
FTE Legend
Joined: Mar 2017
Posts: 31,976
Likes: 9,200
From: Western NY
It can be either or both rails, the driver side is more common because it has an extra orifice or to for balancing fuel between the banks, the passenger rail has them too just not as many. I am not sure if there is a way to diagnose them other than to replace and see if the issues clear up. If there is a way to diagnose them I would like to know how.
Laughing Gas
Joined: Jan 2024
Posts: 849
Likes: 464
From: Up in Texas
One would think, but from what I have read/seen and discussed, the rails can cause a variety of intermittent and constant weirdness.
FTE Legend
Joined: Mar 2017
Posts: 31,976
Likes: 9,200
From: Western NY
I'm thinking I remember a recent thread where a truck had issues and it turned out to be the driver's side fuel rail. And I believe he didn't replace it after having a CP4 go out if anyone else remembers that.
Laughing Gas
Joined: Jan 2024
Posts: 849
Likes: 464
From: Up in Texas
1st Gear
Joined: Jun 2025
Posts: 1
Likes: 0
I have had this truck to 2 separate Ford Dealers, both of which cannot find a code stored on the computer. I'm not sure if the code is somehow clearing itself, but 2 separate "Master" diesel techs seem to be baffled at what I am experiencing. These are older gentlemen who look like they have been doing it for a while.
I read on another forum that replacing the driver's side fuel rail might solve my problem, but no reason was given as to why. I looked this part up , and it looks like an OEM replacement is less than $200. https://www.getoemparts.com/oem-part...EaApiPEALw_wcB
Do you think replacing the fuel rail is worth a shot? What would go wrong on a fuel rail, and why the driver's side specifically?
I did have the fuel filter changed right before this problem started happening. Do you think swapping a fuel filter again would be a good course of action?
I read on another forum that replacing the driver's side fuel rail might solve my problem, but no reason was given as to why. I looked this part up , and it looks like an OEM replacement is less than $200. https://www.getoemparts.com/oem-part...EaApiPEALw_wcB
Do you think replacing the fuel rail is worth a shot? What would go wrong on a fuel rail, and why the driver's side specifically?
I did have the fuel filter changed right before this problem started happening. Do you think swapping a fuel filter again would be a good course of action?
Spoiler
Thread
Thread Starter
Forum
Replies
Last Post
MooseMan2
2007 - 2014 Expedition & Navigator
3
Oct 16, 2012 07:03 PM
