Out of ideas

[bullardcooper]

Hey guys, long time lurker, first time poster.. Got a little issue (maybe big issue)
04 FX4 F350 160k miles
Fuel pump replaced at 101k miles
I was driving along the other day (truck was running fine)...
All of a sudden, the truck went to idle.. I could press the throttle and it wouldn't do anything.. I pulled over into a station.. The fuel light had been on for a few miles, so I figured it had run out of fuel.. No big deal. The truck would sit there idleing but wouldn't rev up..
I put diesel in it, and tried to crank it for a while to no avail...
It would try to start but never would. I had it towed to my shop, where I started thinking that maybe it was filters since they're about 35k old..
I replaced filters today, cycled the fuel pump several times, and it won't start.
I pulled the cap off the top fuel filter, and I have it full of fuel again, so I know the pump is working..
I'm at a loss !!

[Goose350]

Need to scan for codes. It could be anything.

[VeeDubTDI]

Your first step is to scan the computer for trouble codes. That will point you in the right direction. If you don't find any trouble codes, you will need to follow the no-start link in my signature for information on finding the cause of your no-start problem.

Let us know what you find out!

[bullardcooper]

okay guys, I got ahold of a Actron CP9180 - Appears to be a fancy scanner-reader..
Anyway, the computer has no codes present...

[bullardcooper]

can you bypass the ICP sensor somehow and test it as bad or good ?

[bullardcooper]

I'm also getting ZERO smoke after extended cranking (no start of course)

[Fantom]

Sounds like it could be a FICM problem, but that usually throws "injector circuit low" codes for all 8 cylinders. What's the voltage to the ficm?

[bullardcooper]

I am not certain if this scanner will read the FICM voltage (any direction appreciated)
I do know that I unplugged the ICP sensor, and upon cranking the engine over, I got a ICP code circuit pressure low or something like that..
Any ideas on how I could read FICM pressure on this scanner ?

[Fantom]

Never tested it with a scanner. But testing the ficm is pretty easy, even for a guy like me. Here are the instructions I followed on how to do it.
6.0's, FICM's and Cold Start Problems - Powerstroke Nation

Pretty simple. The ficm is on top of the motor near the firewall. You can unbolt the coolant res. and move it out of the way to do this. There's a small plate on top of the ficm. Remove that with a Torx 20 bit. Mine was a "4 screw" ficm, I'm not sure what yours is, either 4 or 7 but you'll know once you take off the little plate. The link has the procedure for doing a 7 screw ficm as well. Use a multitester, and test for voltage on the bolt closest to the driver's fender, with the key on and while cranking (you'll need a helper). Don't let the probe touch the side of the ficm, it'll ground out. You want your ficm voltage to be around 48, that's a good ficm, below 48 down to about 35 volts is decent, less than 35 and you've got yourself a bad ficm.

[bullardcooper]

well Bacjk to square 2 or 3 guys...
The FICM checks out good.. KOEO voltage 48.9, during cranking it only dropped to 47.7 volts.. What now ??