05 6.0 out of fuel

[05kngranch]

I have an 05 350 powerstroke. My problem started hauling a 10k lb trailer at 35-40 mph would start bogging down and stall like it was running out of fuel but I have a full tank. Would eventually start back up after cranking and pumping the gas. the condition has worsened and will do the same thing with no load. I tried changing the fuel filters and a pump rebuild but still the same problem! Please help.

Mods include: EGR delete, intake, exhaust, 90hp injectors, sct w/ innovative tunes, 4" lift w/ 37" toyos

[shu873]

Is it only when towing a load or does it act up unloaded as well? I don't think fuel delivery is your problem. You need to have the truck checked out (scanned, hooked up to the computer) by a good diesel shop or Ford garage.

[Lilfarmrboy]

Did you have the blue spring mod done? Sounds like you are loosing fuel pressure. With all the stuff you have done that sounds like a good canidate to me.

[05kngranch]

It does it both loaded and unloaded. When i changed the fuel filters I also added the blue spring kit. Planning on taking it to a shop if I can't get it figured out. Just running out of ideas..

[Lilfarmrboy]

Well it started before you changed filters so I'm with shu on this one, it doesn't sound like a fuel delivery problem. Are you hooking a guage to it to see if you are getting any codes? I would do that before taking it to the stealership. Just in case it is a fuel problem I wouldn't run it much to prevent any damage to the injectors.

[05kngranch]

I tried hooking it up to my sct but it didn't see any codes. My buddy owns a shop in town so im going to limp it there tomorrow i guess. Thanks for the ideas! I'll let you know what I find.

[Lilfarmrboy]

Sorry I couldn't be more helpful. Although I have learned a lot from this site I'm not an expert on the 6 oh by anymeans. Hopefully its nothing major and a simple fix. I know a guy who had the same problem and traded his truck for a Dodge. He thought it was the nature of the truck until he rode in my 6.0 and then it dawned on him he might have had a problem.

[shu873]

My guess is bad FICM or bad injectors, which is why you need to hook it up to the diagnostic computer. You don't just want to throw parts at these things. That gets expensive real quick and more often then not doesn't fix the problem.

[05kngranch]

Just wanted to throw out an update. Turned out to be the fitting on the back of the hpop exploded so i was losing oil pressure. Also turned out that I had an extra 2.5 gallons of fuel mixed in with my oil. Which after testing found out that had some bad internal injector o rings. Alls well now though Thanks for all the ideas and help!!