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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

Thread: 2004 F250 6.0L SuperDuty fuel pressure issues Reply to Thread
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  Topic Review (Newest First)
11-30-2016 03:13 PM
Originally Posted by Snoho_98296 View Post
thanks for feedback.
No problem. Good luck with everything.
11-30-2016 02:45 PM
Snoho_98296 thanks for feedback.
11-30-2016 02:24 PM
Originally Posted by Snoho_98296 View Post
but did you feel performance issues before, rough running, stalling, etc ?
Not after engine was warm. In colder weather, truck typically runs rough at initial start up. I've really never noticed rough running after it has reached operating temperature.
11-30-2016 02:10 PM
Snoho_98296 but did you feel performance issues before, rough running, stalling, etc ?
11-30-2016 02:05 PM
Originally Posted by Snoho_98296 View Post
dillon134 - did you have the same type of fuel pressure issues as me ?
I've actually never tested/checked my fuel pressure. Everyone talks about the Blue Spring Upgrade and how it is imperative to do it but, I've also heard tons of people discussing issues after the upgrade.

I guess I'm just a gambler by nature... as Dewey Oxberger said in the movie Stripes.
11-30-2016 01:04 PM
Snoho_98296 dillon134 - did you have the same type of fuel pressure issues as me ?
11-30-2016 01:04 PM
Ford06 Some of the early tanks had a lining that comes apart and causes problems. I didn't make it a point to remember when it stopped as it was changed prior to my trucks manufacture.
11-30-2016 11:38 AM
dillon134 My 07 F250 had the same problem. Sometimes it would display that the tank had plenty of gas in it, when in fact it was almost empty, and other times it would read empty when I had gas.

For what it's worth, I was advised to purchase some Diesel Kleen Octane Boost and, maybe it was coincidental, but the problem cleared up.

Could the Sending Unit have been gunked up and did the DK clean it up? Not sure, but it saved me from having to install a new sending unit, at least for now ;-)
11-29-2016 12:21 PM
Snoho_98296 Hi WDP - Thanks for the advice, I take it I should drain the fuel tank first ? never done this before...

I hope this is it, it would explain a lot of things...

Ford06 / sometimes the fuel gauge would jump up and down with no reason, sometimes it would show no fuel, when there is fuel, something funky is happening there, might as well isolate for it and keep on drilling, fingers crossed.

Question, if it is the fuel tank, is it recommended to just replace the pickup components and clean it up, or should I at that point, just buy a new tank ? I mean, my truck has 175K miles, this is a recent thing...
11-29-2016 11:43 AM
Ford06 Does fuel level make a difference in how it runs? If so, it would definitely point to a pickup problem.
11-28-2016 08:51 PM
WDP Great idea, use a 5 gallon clearish jug, pull the two lines closest to the tank, use long 1/4 inch tubing, put into the jug and place on the passenger floor. Have a helper watch for bubbles, flow and see if that clears up the pressure problem. Good luck.

11-19-2016 01:26 PM
Snoho_98296 I had this problem before the Blue Spring upgrade, that's why I did it, thinking it would help it, but nothing...

Does a quick way exists to isolate the fuel tank to see if that is the culprit ? maybe disconnect the fuel lines and put them into a external fuel container ?
11-17-2016 08:20 PM
Originally Posted by Snoho_98296 View Post
Well, I got the filters from riffraff, and I put on the o-rings correctly and even put some oil on them. I did that many times before, the only thing I can think of, the under the truck filter, the water plug was replaced from the stock to the other one that you can unscrew with your hands, that's it. Could that cause it ?
Did you get the riffraff blue spring kit? I had one fail after 3 months. The rubber sealing surface tore causing most of the fuel to pass back to the tank, low pressure with a heavy pull. Went OEM Ford and pressure is fine and holds with the pedal to the floor.

10-30-2016 05:21 PM
Snoho_98296 does some kind of a quick test /procedure exists to rule out the pickup in the fuel tank ?

and if so, what is that, any good youtube videos ?

10-21-2016 09:57 PM
bismic As mentioned above, you might have an issue with the fuel pump pick-up tube in the fuel tank. It is a pain, but you might want to remove it and inspect.

Also, I would inspect the fuel pressure regulator spring/etc.
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