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Discussion Starter #1 (Edited)
The last time the truck ran it only ran on 4 cylinders, won't accept throttle and blows white smoke. Now the truck doesn't run at all. Truck has been to Ford, shows no codes, has new injectors and FICM oil rail plugs and stand pipes 0 miles. HPOP icp checks out, fuel pressure at each cylinder head is good, truck has ARP head studs, no change in coolant level, all diagnostic tests that Ford has have been done. Compression has been tested and well within spec. Engine has approx 68,000 miles and also has an EGR delete kit. Ford has been no help. Also had truck at a diesel performance shop. They spent 30 hours running diagnostics with no luck. Has anyone run into this situation? Need help, truck hasn't run in almost a year.
 

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I don't know where you live. But I know where I would be taking that truck. Right to Scuffy's shop.

BTW Scuffy is a tech on here and works on these things daily. He is good at what he does. He is located in NC.
 

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Discussion Starter #6
Ford sent out a man named Tony who teaches diagnostics to the ford techs. After going through the truck he thought it was an injector problem and recommend replacing all 8 injectors and the ficm which i did at a cost of 3000.00 and the truck runs as it did before the change. While apart every thing that could be inspected was .
 

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when was this done?
 

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have you tried another computer if possible.
 

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Discussion Starter #9
The injectors and ficm were Tonys first stab at it. We had a hard time getting the ficm to sync and recognize the abs system and ecm. We did try 2 diferent ecms but did not want to reflash another customes parts. I did not want to just throw a new one at it in hopes of that being the problem although with other problems i have had i am leaning that way. before the running problem i had a trans fail but we could find no physical problems when we took the trans apart and had no codes. Also the truck ran with the ids connected and it showed the truck moving at 65mph in drive and the trans output shaft was not turning. You would think that is impossible as the speed sensor is right there. Saved my money for 6 months put in a ats trans and tq converter was fine for 300 miles and then the engine problem. The truck seems to be over fueling or firing the injectors at the wrong time. We even checked to make sure the cam and crank are in phase.
 

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have you reprogrammed the ECM? what about cam/crank sensors?
 

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Discussion Starter #14
Way too much if i had any idea i was going to spend this much i would have put a Cummings in it already. Every time it goes to the dealer they come up with a different reason not to warranty it. The truck is at the dealer now and they want 1500 to remove the injectors that another shop put in and have 0 miles on them. I am sure this will be another 3 or 4 grand when they are done and it still wont run.
 

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Me thinks it's time for you to find a new dealer that won't cornhole you every time you pull into their lot.

Or, at the very least... if you're going to pay for the repairs, take it to a shop that works on PowerStrokes exclusively (or semi-exclusively). At least then, you know that you're getting your money's worth.
 

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Discussion Starter #16
The truck has been to 4 ford dealers and one very good independent shop. I have been working on power strokes myself for 8 years off and on and have spent hours talking to some very good techs and everyone is at a loss.Ford even had an engineer look at it the first time he said injectors and ficm. Those were replaced and he came out again after and it was running the same he had no ideas after running hours of tests.
 

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I find it astounding that a simple (ok, quite complex) machine can't be diagnosed via standard troubleshooting methods.

So they got the engine running, albeit only on 4 cylinders... what's causing the other four cylinders to not fire? Which ones are firing? There are only so many parts of the system that can cause this to happen. There has to be some sort of disconnect between the PCM, FICM, or IDM.
 

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Discussion Starter #18
I do believe it is a ecm issue but i cant tell ford what parts to put on only because they wont listen to me. While at diesel specialties they did not want to just throw parts at it and i dont blame them i like to find the root cause of things and start there. We have checked all sensors and run injector tests checked resistance on all wires going to and coming out of ficm and ecm. That is why i suspect the ecm plus it seems to be the only explanation for the trans failure. The ecm was telling us through the ids the truck was moving at 65mph while in the shop on the ground. We then took the trans out and tore it down for inspection and could find no reason for the truck to not move.
 

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Well, I think you've narrowed it down. Doesn't someone on here have a loaner PCM or something? Some of the VW tuners keep spare ones for just such an occasion.
 

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Discussion Starter #20
I do believe it is a pcm issue but i cant tell ford what parts to put on only because they wont listen to me. While at diesel specialties they did not want to just throw parts at it and i dont blame them i like to find the root cause of things and start there. We have checked all sensors and run injector tests checked resistance on all wires going to and coming out of ficm and pcm. That is why i suspect the pcm plus it seems to be the only explanation for the trans failure. The pcm was telling us through the ids the truck was moving at 65mph while in the shop on the ground. We then took the trans out and tore it down for inspection and could find no reason for the truck to not move.
 
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