Here's the skinny:
2000 F350 - friend bought used - his first PSD (of course bought someone else's headache)
Originally ran, but little blue smoke at all times... Not the best power, but livable...
Within 500 miles, auxillary fuel tank and switching valve (aftermarket) failed. I was not there for this - someone else told my friend to replace the HPOP - which he went and bought and was half-way installed before consulting me (needed me to finish installing it and re-assembling rest of truck on side of road).
After re-assembly, which included new HPOP and IPR, I found out that the old girl wasn't pumping any fuel to the bowl - at which time, I deleted the AUX tank and switching valve altogether - and went back straight line to the OEM tank. Fuel pump was working proper and immediately started fueling the bowl. Then the truck fired up and ran. I went home - he attempted to finish his trip. He made it about 40 - 50 miles and blew one of the upper HPOP oil lines to the head. Oil safety switch shutdown the engine. He replaced BOTH lines, changed what was left of the oil and filter, and re-filled. From that point forward, any time the engine warms up to even remotely close to operating temperature, it would slowly "fizzle out and then eventually die with no restart until cold".
At that point, he towed it back home and I've been dealing with it ever since. At this point, after running some basic tests and gathering info, I found that after it was warming up, it was bleeding oil out of the injector o-rings and up into the UVC area - causing the "fizzle down" effect until it eventually died (again with no restart until it cools off). At this same time, it developed a "long crank to start" symptom as well - both cold or warm (before it would shutdown at temperature).
Knowing that the O-rings were leaking (after visual inspection during KOER), I went all in on the top-end.
As of right now, it no longer "fizzles down and dies" -- when it warms up, it flat out falls on it's face with no restart until it cools off. When it does run, it runs like new money - smooth, plenty of throttle response, and real perky - not like before - but it still frickin' dies the moment it warms up - or if you shut it off when it's getting warm but still running - it won't restart. It builds LPOP and HPOP pressure, but won't restart.
I used a borrowed scanner to do my original diagnosis, and I will have my own dongle and FORSCAN in two days before I put another penny into this thing.
All I know is when I do get it running, with maintenance, this beast should be bulletproof with everything that's been done so far...
2000 F350 - friend bought used - his first PSD (of course bought someone else's headache)
Originally ran, but little blue smoke at all times... Not the best power, but livable...
Within 500 miles, auxillary fuel tank and switching valve (aftermarket) failed. I was not there for this - someone else told my friend to replace the HPOP - which he went and bought and was half-way installed before consulting me (needed me to finish installing it and re-assembling rest of truck on side of road).
After re-assembly, which included new HPOP and IPR, I found out that the old girl wasn't pumping any fuel to the bowl - at which time, I deleted the AUX tank and switching valve altogether - and went back straight line to the OEM tank. Fuel pump was working proper and immediately started fueling the bowl. Then the truck fired up and ran. I went home - he attempted to finish his trip. He made it about 40 - 50 miles and blew one of the upper HPOP oil lines to the head. Oil safety switch shutdown the engine. He replaced BOTH lines, changed what was left of the oil and filter, and re-filled. From that point forward, any time the engine warms up to even remotely close to operating temperature, it would slowly "fizzle out and then eventually die with no restart until cold".
At that point, he towed it back home and I've been dealing with it ever since. At this point, after running some basic tests and gathering info, I found that after it was warming up, it was bleeding oil out of the injector o-rings and up into the UVC area - causing the "fizzle down" effect until it eventually died (again with no restart until it cools off). At this same time, it developed a "long crank to start" symptom as well - both cold or warm (before it would shutdown at temperature).
Knowing that the O-rings were leaking (after visual inspection during KOER), I went all in on the top-end.
- Replaced injector o-rings (7 of the 8 injectors are not OEM - they've been replaced in a past life).
- Replaced injector cups (much pitting and damage inside, although no signs of pass through - just that I wasn't putting new o-rings in those nasty bastards and for the price changed them while I was in there).
- Replaced turbocharger (found that in a past life, this engine dropped an exhaust valve and sent pieces through the turbo - with the main part of the valve still lodged in the housing)...
- Replaced CPS and harness (got the good one via forums here).
- Replaced ICP sensor and harness.
- Replaced IPR harness.
- Replaced EBPV harness.
- Replaced Fuel Heater/WIF Sensor Harness.
- Deleted EBPV from turbo pedestal.
- Replaced UVC gaskets and harnesses.
- Replaced one shorted glow plug.
- Repaired engine wiring harness.
- Replaced LPOP with M208 (I am suspect of the engine front cover - it had minor (I mean faint) scoring, but it was visible and detectable - old pump was visibly worn and outer cover was scored as well).
As of right now, it no longer "fizzles down and dies" -- when it warms up, it flat out falls on it's face with no restart until it cools off. When it does run, it runs like new money - smooth, plenty of throttle response, and real perky - not like before - but it still frickin' dies the moment it warms up - or if you shut it off when it's getting warm but still running - it won't restart. It builds LPOP and HPOP pressure, but won't restart.
I used a borrowed scanner to do my original diagnosis, and I will have my own dongle and FORSCAN in two days before I put another penny into this thing.
All I know is when I do get it running, with maintenance, this beast should be bulletproof with everything that's been done so far...