I've been fighting a fuel starvation issue on my 7.3. After sitting for a while it runs fine under light load and even in short bursts of hard acceleration, but a long hard pull (for example from a stop up to 70mph via an inclined onramp) will cause a stuttering/shuttering, loss of power, and a rough idle which clears back up after a few seconds of idling. I thought it was just a fuel filter issue but replacing it didn't make too much of an effect. Adding diesel kleen helped considerably and I though perhaps it had even solved the problem entirely until I filled up from 1/4 tank today to help a friend move some barrels and the problem came back with an absolute vengeance.
My best guess is that the screens in the tank pickup had junk in them, the diesel kleen knocked it loose, and filling up with the high flow nozzle at the station gave the trash in the tank a good swirl causing it to clog the screens again. The fuel pump sounds like it is struggling too, but that just makes me think the screens are clogged more and before I replace it I want to check the screens because... free fix first.
The trouble is that the tank is f.u.l.l. of fuel. There is no way I'm going to drop it as is and I don't have enough clean fuel storage to drain it. I was thinking I could just tilt the bed as shown here to get at the sending unit snd screens. Good idea? The truck has lived in the South its entire life and never seen salt so the bolts are pretty clear. The only things that looks like they may be a pain are the gooseneck safety chain u-bolts.
My best guess is that the screens in the tank pickup had junk in them, the diesel kleen knocked it loose, and filling up with the high flow nozzle at the station gave the trash in the tank a good swirl causing it to clog the screens again. The fuel pump sounds like it is struggling too, but that just makes me think the screens are clogged more and before I replace it I want to check the screens because... free fix first.
The trouble is that the tank is f.u.l.l. of fuel. There is no way I'm going to drop it as is and I don't have enough clean fuel storage to drain it. I was thinking I could just tilt the bed as shown here to get at the sending unit snd screens. Good idea? The truck has lived in the South its entire life and never seen salt so the bolts are pretty clear. The only things that looks like they may be a pain are the gooseneck safety chain u-bolts.