06 6.0 wont start again

[youngstroke]

a week ago today my truck wouldnt start it would crank just fine but it wouldnt start so i had it towed to the dealer and they said it was the fuel filters so they changed them and I got my truck back yesterday and this morning it wouldnt start again but now it has a knocking sound kinda like air trapped somewhere and it puffs black smoke when its tirning over.

[mcbr495]

Had same problem on my 05 Excursion. I took it to the dealer and they replaced the injectors and it runs fine so far. Good luck.

[ky-lx]

a ruff guess it might be your FICM gone bad

[youngstroke]

yea but wouldnt they have caught that yesterday when they had it on their computer?

[chuckles]

not necessarily. Sometimes things can fail and not set codes. Is this no-start when hot/cold, either??

[youngstroke]

Cold. when i went to start it this morning. and i also noticed the the cycleing noise you should hear doesnt last near as long as it should.

[chuckles]

so if you can get it running, will it restart hot okay?

[youngstroke]

yea wen i got it yesterday after the fuel filters were changed i crank it up prolly 4 time and it was just fine.

[youngstroke]

could it be the egr valve?

[chuckles]

it could, but it could also be a number of things, low ICP, low fuel pressure, bad FICM, bad IPR valve, bac ICP sensor. Where there any codes store in the truck??