03 Ford 6.0 starts up prefect cold runs great, park the truck park up hill or down hill and leave it for 1-3 hours and it will not start the first time, crank the truck over for about 5-10 seconds only when hot and the dash oil pressure won't move turn the key off and back on crank for 1-2 seconds and the truck will slowly start and puff a big cloud of grey white smoke and then oil pressure gauge will come up and run like nothing happened, I have 205/75 warren injectors 4 months old, a1000 fuel pump and s366 with t4 uppipes. I have a hpop gauge and reads 500 idiling and 4000psi wot, also have a fuel pressure gauge and it reads 65psi when cranking and running doesn't move. I've done a couple air pressure tests at hpop and can't hear any leaks, tested drain back vavle and it holds fine, just put a brand new ficm in reads 48v all the time new ipc with pig tail new screen for ipr. Ford filter I'm at a loss at what to do next anything helps
Thanks,
Thanks,
