are 6.0no's common for runny poopy when there cold? once the truck warms up it runs flawlessly but when you start it up from sitting overnight or letting it sit a few days it runns rough at idle and has hardly any power until you drive it about a block or so. could it be the edge evolution is fueling it weird when its cold because it smells fairly rich

 

Is it common? yeah kind of. Is it right? No. 90% of the time it's either weak batteries or a dying FICM. FICM test procedure is found at the top of the 6.0 page.

They do cut fueling etc when they're cold to save themselves.

Also, every diesel will run a little less than great when they're cold, since they need heat to burn the fuel efficiently. Also, especially on 6.0's and 7.3's because our injectors are fired off of the oil, as it heats up and thins out it moves much easier and allows the injectors to fire at the right times, and also you'll notice turbos are slower to spool with cold oil, as the oil thins up again, turbo can spool easier as the bearings aren't being dragged as much with cold oil.

 

ok thanks i cheked it out good info how come i always here people run fram oil filters in there trucks ive always herd fram is garbage for many years and thearfore have always run wix on every engine from my 04 yukon 5.3l to my 96 f350 cummins

 

Mine does the same, but is fine after about 30 seconds

 

Fram and Motorcraft use the exact same filter that is made in Germany, it's the others that you have to watch out for, especially ones that come with their own cap, they should never be used.

 

ok got my edge cts insight in the other day and the ficm reads 47.5 volts across the board and ect is 190 and eot is 192 after driving it for a bit so that all seems good to me with no issues