Hi folks,
I borrowed the items from the first post message to give y'all a heads up.

Year of truck: 2005 Ford F-250 Crew cab.

Motor: PS 6.0L

Mods: none

Anything you've done recently: Brake rotor and caliper. no engine work.

How is the truck primarily used: light duty on weekends, launch/recover boat.

When did the issue start, and if it's intermittent or all the time:
Saturday about 3pm i went out to start the truck up and let it warm up a bit. It started right up and ran great like it always has. after about 20 or 30 seconds, it just conked out.
It has over 3/4 tank of fresh oil. I turned it over for a few seconds thinking it would just start back up. I tried to start up but sounds like it's labored or starving for fuel. I cranked a while longer and did get it to start up but it runs like crap and wants to stall out at low rpms. I checked the emergency fuel shutoff - not tripped. I checked the fuses - no problems there. Checked the fuel filter on top of the engine, looked ok, cranked to see if fuel filter bowl filled up,it did.

Anything else that might pertain to the issues at hand:

Any codes, and what are you reading codes with: I bought a innova can/obd2 reader. No codes showed up. I unplugged the ICP sensor and tried cranking it. It got a code for ICP low. cleared code, plugged sensor in and tried reading again - all clear.

Any idea what this problem is?

Thanks

 

Sounds like you've covered the basics. Are you getting any smoke when you crank? Black? White? None?

 

No, i'm not getting any smoke at all. I could try to see if it'll smoke when i can manage to get it to start up but that takes so long and probably isn't good for the starter or batteries.

Are you maybe thinking a blown head gasket?

 

No smoke means the injectors are not firing.

Could be the FICM, or a high pressure oil issue. Usually a FICM will die a slow death and have hard start issues etc. High pressure oil system leak can be sudden like this.

I'm leaning high pressure oil leak at the moment, BUT, the FICM is super easy to test, at the top of the 6.0 page you'll find the test procedure, try that and see what you get. Post here with the results. If the FICM tests out ok, we're going to have to dig in a little and figure out the high pressure oil leak (if there is one). If you had a scanner of some sort or know someone that does, this would be a good time to buy them a 12pack of beer and invite them over. You'll want to monitor ICP desired, ICP actual and IPR duty cycle. ICP is injection control pressure. Desired ICP is what the PCM wants/needs, and ICP actual is what your pump is putting out. Your pump needs to build 525 psi just to get the PCM to activate to get the truck started. If the sensor itself is bad, you can just unplug it (lucky you have an 05) and try starting it. Unplugging the sensor causes the PCM to revert to 2000psi default, which should easily start the truck. That would eliminate the sensor. If you don't have access to a scanner, you can do it the mechanical way. You can pull the IPR valve out and see if there is any debris on the screen. Usually that's an indication of a failed high pressure oil pump. You could just have a leak too, the way to test that is to buy a spare IPR wiring pig tail, wire it up to a 12V source to command the IPR closed, then pressurize the high pressure oil system with shop air using a fitting connected to where the ICP sensor is located (passenger side valve cover).

Did I just overload you with info? haha. Start with the FICM test and go from there.


This might help too: http://www.forddoctorsdts.com/articl...icle-05-17.php

 

I did some reading around and it seems i have lied to you. I didn't see clouds of smoke rolling around the back of the truck. I did not actually watch the exhaust pipe output while the motor was being cranked. I will do that just as soon as i get the batteries charged up again for the FICM test. As to the scan tool, i have a innova 3100f CAN/OBD2 diagnostic tool. Is that the scanner you mentioned?

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I charged up the batteries, looked at the tailpipe for smoke. We cranked it a few times and i didn't see any smoke, but my brother said that he saw black smoke after trying to crank it up the other day. It tries to start and that's when he saw the black smoke. I did the FICM test - all good. 48 V +- 1 V. I did a KOEO test with my scanner and it picked up about 4 injectors low and 1 glow plug low, but while it was doing the diagnostic the dash alert said "water in fuel". the scanner didn't pick up a P2269 - Water in fuel condition. It only showed up on the dash alert while the KOEO was testing. I remember looking in the fuel filter bowl and didn't see any water - not that i would have. The engine acts like it wants to start but just don't unless i crank on it a while. Could it still be water in fuel?

 

Sounds like a high pressure oil problem. If you don't see smoke when cranking, it means the injectors are NOT firing. Most common is FICM failure but you've eliminated that.

Can you read ICP (injection control pressure) with your scanner? That's what we need to see now. We ideally need ICP actual, ICP desired, and if you can IPR % duty.

 

Just checked the water seperator/primary fuel filter by draining the HFCM. There was a small amount of water in the bottom of my test bowl and a little bit of debris. I pumped it back up and drained it again. This time no water and a lot less debris. After that, i tried cranking it up for about 30 seconds. I saw some short puffs of blackish smoke then as the engine tried to catch, it started blowing out lots of white smoke. The wife got it to fire up once and it blew out a little white smoke as it ran. Then it conched out and only blew big clouds of white smoke after that. If i press on the accelerator a little it seems to help it catch fire better but then it won't catch at all unless you leave the accelerator off.

I apologize about the bad observation on the smoking tailpipe thing. I am brand new at diesel repair. Please bear with me as i struggle through this issue.

I am still learning about the scanner so i don't know what it'll do yet. Hopefully it can be taught to read the IPR data.

 

Another relatively simple test is fuel pressure... that wouldn't hurt to check.

 

I changed out the filters - they were nasty. Kinda got my hopes up a little. We tried cranking it and it started trying to fire and was making little puffs of black smoke that smelled burnt. There was some white smoke with it. Then it fired up and ran for about 10 seconds. It was making little puffs of black smoke. Did the fuel pressure test at the secondary filter housing. With key on only, it pumps up to 52 PSI, Then when the pump shuts off, the pressure slowly bleeds down to 0. We tried cranking it and the pressure went back up to 50-52 PSI. Batteries were getting weak from all the cranking so i put it back on charge.

 

It will still run with that fuel pressure, i should be around 60-65psi though, the new blue fuel spring should fix that though. If the ficm is good and the turbo is not stuck then it is going to be in the High pressure oil system, maybe The STC fitting.