06 f350 smokes smells like fuel not coolant

[rgreek]

ok, here is the problem truck came in cranks like it has a damaged cylinder, but, when starts runs smooth and ids detects no missing,smokes like a train. acts as if it has an injector tip cracked.have been unable to identify the cylinder.ids with vcm 2 will not allow me to kill injectors.

also am getting codes po611, and i believe p1378.is it possible that the ficm which is original could be causing this issue?

[Matt Saunoras]

try and restart your session. I'm having hit or miss injector cancel buttons on both 6.0s and 6.4s with the VCM II

[mchan68]

What are your FICM voltage readings on datalogger showing?

[Steve Mutter]

You have an uneven sounding crank. Does relative compression show any low cylinders.

[rgreek]

ficm voltage 12, 47, 12. relative shows 4 8% low

[Aaron]

Manual comp test?

[rgreek]

not yet, it has a lot of wiring and addons that have to be moved to get to the glow plug.but, i can say when running, it is smooth just smokes really bad. coolant level has not moved. i even checked with my other scanner and percent delete was showing no abnormal activity.

[Steve Mutter]

I would do a manual compression test. I had one that had an uneven crank but would run smooth with white smoke. I found low compression and found a valve seal issue. The guide was trashed and the valve seat was not sealing.

[Brad Clayton]

Quote:

not yet, it has a lot of wiring and addons that have to be moved to get to the glow plug

I would lift the truck chest high and pull the inner fender liners to get to the glow plugs. As long as the bus bars come out without a fight then it's a quick test procedure.

[rgreek]

well, replaced the number 4 injector. and than number 7 went to pos 20 on power balance. replaced number seven and test drove smoke cleared up and had normal crank and start. thanks for your replies.