Sorry put the original post in the wrong place
I love my 07 f350 6.0 when she is running well, but she is driving me nuts with problems. Thankfully, tat is a short trip

 

UPDATE. getting communication codes for injectors 1, 3, 5, and 7. Everything tests out ok. Still no start. Any suggestions

 

Have you tried pushing in the connectors to the FICM? There are 3 connectors plugged into the FICM. I have read on the forums that one connector has all the signals for the even cylinders and another connector has the signals for the odd cylinders. I believe the back 2 connectors send signals to the cylinders, the front connector has some general signals that apply to the system as a whole.
To check that the connectors are seated well, you must take the Air Box out and then un-bolt the FICM from it's mount. Then push each of the connectors up into the FICM itself. I would also try pushing the connectors into the PCM module on the driver side fender. You can try starting it without putting the air box back in, just don't rev it up or run it too long, so you don't get dust into the turbo.

After checking the connectors are seated, if this doesn't solve your problem, you can try testing the FICM voltage. There are a number of posts here on the forum that describe how to do this.
If your FICM voltage is lower than 45 volts during KOEO (Key On Engine Off), it is bad and will need fixing. If it is bad, the best thing to do is sent it to ficmrepair.com
Try looking at this video for more details:
The guy in the video sells repaired FICM's, however, ficmrepair.com is the best place to get yours fixed. It's better to have yours fixed than to buy a new one, because the new FICM's have a high failure rate.

 

Thanks busted but the FICM tests out well.
We have traced the problem to 6 out of 8 injectors are bad. Going to replace all 8 and hope to hell that works.

 

Sorry but 6 out of 8 injectors don't just go bad, if that is what is showing up then the FICM is to blame, just because it might show 48volts does not mean the FICM is good, it just tells you that the power side is good, the Logic side fails too and it will show as a whole bank of injectors as failing or just won't respond at all. I realy think you should borrow a known good Ficm and give that a try first

 

shawnecarter,

No disrespect intended, but, I would make darn sure you have a good FICM, before starting your engine with a new set of injectors. Even if the injectors are bad, I would wonder why 6 of 8 are bad. That's not normal. You should also make sure your fuel pressure is high enough. I only saw what you posted here...there may have been more information in another location, but you didn't say what your fuel pressure is.
Low fuel pressure and a failing FICM are 2 of the most common causes of bad injectors, or poorly functioning injectors.
Like I said...no disrespect intended.
I hope it runs great for you.