Truck: 1994.5 F350 Crew Cab Dually with 7.3 "PSD"
A few months back my truck died. The UVC harnesses had shorted out to the point my glow plug solenoid seized contacted. I replaced the solenoid and the next day it died a mile from the house. Fuel Filter light came on and engine valley was full of diesel. Hooray!
While investigating the failure is when I found the extent of the injector harness destruction, so I ordered new UVC harnesses, gaskets, and pigtails, via the Dorman kit. Very convenient kit and 1/6 the cost of new from the dealer.
While I had all that apart I decided I'd go ahead and rebuild the fuel bowl since I had a few leaks and wanted to clean up the valley anyway.
Rebuilt the fuel bowl with parts from DieselORings.com and installed the "California Spring Kit" since my FPR spring was quite literally snapped in half (I kid you not.) While I had all that apart I pulled the turbo and fuel pump and resealed the banjo bolt and head lines, along with deleting the EBV and switching to the non-EBV pedestal. Another side note: If you EVER have to pull your turbo, delete the EBV if you don't need it. Reassembly is 10x easier without that damn valve blocking the rear driver bolt!
So... the truck sat for a month or two while I took care of all this stuff and now I'm having trouble with it. It has slow starts and it's blowing very light white smoke while idling. However, if I rev it from an idle it blows pretty heavily... just not anywhere near as much as most of the videos I've seen that turned out to be injector failures.
My fuel pressure is doing the typical mechanical bounce, between 60-70psi, and stays there pretty steadily. The Fuel Filter light stays on when cranking, but goes off as soon as the truck is running. I was having a couple issues with fuel leaking after reassembly, so I thought it could be that, but I've resolved all the leaks I can find and I'm still having trouble.
I've scoured the Internet looking for suggestions on what else it could be. Everything I'm seeing related to injector O-rings seems to be indicated by heavy white smoke, even at idle.
I've been told it could be trash in my fuel lines, so my next step is to remove the bed and replace both pick-up feet, reverse flushing the lines as I go, just to be sure that if they did fall apart, I'm not stuck dealing with crap wedged in my lines even after I replace the pick-ups.
Does anyone else have any suggestions on what I can look at next? I've been working on my own piles of Fords since I was a kid, but this is my first diesel. I've had it for three years, now, but it was just kind of a back-up vehicle. Only in the last six months or so have I really started investing in it and catching up on the maintenance and despite running what I thought was pretty damn great initially, it seems like everything has started going downhill since I replaced the fuel filter, which was solid black and looked like something was growing on it. In the three years I've had it, though, it's only picked up about 4,000 miles, so it hasn't really been a priority for me... but now I'd like to start driving it more frequently if I can get the dang thing running properly.
Any constructive help here is definitely appreciated.