05 F350 6.0 no start (cold)

[DanTech_Offroad]

I tried searching but didnt come up with anything for my situation. I have a 05 6.0 that wont start. It will crank over (sounds normal) but wont fire at all. It has been plugged in for a day or so. It is about 20 to 30 degrees here in ohio. Previously the truck had to be plugged in below 40 degrees or it would start rough (but always fire). Even when it is plugged in it would take a few minutes to smooth out. I have done the following to try to fix these problems:
primary and secondary fuel filter, fuel conditioner, New and reflashed FICM by innovative diesel , new glow plug control module, new glow plugs on passanger side (dealer said #5 was bad) (havent got to the driver side yet). I'm not sure what else to do now, no messages show up on the dash but i havent not scanned it yet. Thanks

[tonyf250]

Mine had the same problem and it turned out to be the FICM. I did the FICM repair that has been posted on here and it worked perfectly. How long ago did you do the FICM replace? Have you checked that all of the connectors are seated properly?

[troid123]

you need a scanner...once scanned, we will be able to help you..

[DanTech_Offroad]

the ficm and glow plugs were done a month or two back (before this no start issue), really didnt help anything. The ficm i put in was a REMAN unit, it may have went bad. All connections are good. I replaced the fuel filters and Glow plug control module after this no start issue. My father hooked my scanner up to it just now and got a link error (i wasnt there) so i'll have to find out why that is. Any other ideas ??

[troid123]

Originally Posted by DanTech_Offroad

the ficm and glow plugs were done a month or two back (before this no start issue), really didnt help anything. The ficm i put in was a REMAN unit, it may have went bad. All connections are good. I replaced the fuel filters and Glow plug control module after this no start issue. My father hooked my scanner up to it just now and got a link error (i wasnt there) so i'll have to find out why that is. Any other ideas ??

What kind of scanner is it?

[98SurplusExpy]

Sounds like a a STC fitting at the HPOP failure ... check your voltage at the ICP.

[DanTech_Offroad]

Scanner is an Actron. A local guy that has his own shop said the older scanners wont scan 05 and newer trucks. I got mine about 03 or 04. He let us borrow his newer one and no codes were found. We are going to swap out the FICM back to the old one (it ran when it was on) to see if this new one took a dump and if that doesnt work the same guy has the expensive scanner to do the dealer type scan.

[DanTech_Offroad]

I changed the FICM and it fired. Its still not right because it has to be plugged in and it takes a few minutes to smooth out but its back to the way it was before. Guess im out a 400 dollar FICM and Innovative's tunes (200) I'll try the FICM fix listed here.

[fordmasterdieseltech]

you probably have an injector or 2 sticking on you cold. you need to run a power balance on it when you start it first thtings cold. it will show you what cylinder or cylinders you have dropping out when its cold. the dealership is run this test for you.