Dealing with a 02 f350 7.3 powerstroke . The engine cranks fine . It fires but won't start smoke coming from exhaust while cranking and firing so seems to have good fuel . When it does start it misses for a few minutes and blue/white smoke . When the miss ends so does the smoke and starts fine after that and runs great until it sits for 12 or more hrs . Then back to same start issues . Fresh oil ,new glow plugs, new cover gaskets , glow plugs test at 1.3 ohm across all 8 of them , no voltage drop through glow plug relay , good voltage to each glow plug when tested right at glow plug terminal on each feed right at glow plug , fuel filter housing stays full doesn't seem to bleed back , high pressure oil pump pressure test was high enough to trash a 1000 lbs gauge in 2 to 3 revalutions of engine when cranking . Tested at presure sensor port . Let the brain tease begin for you all . I hope someone might have an idea of what ghost to chase next ..any help would be appreciated ..

 

The engine has 418000 km on it .

 

possible problem with the fuel heater element maybe? Might me something to check.