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Sucking air can cause hard/no starting and white smoking. I had a similar issue on my 01 5.9 for loosing prime due to the in tank pump failure, and my 03 5.9 was sucking air between the tank and the FASS pump and would roll a cloud of white smoke.
I took my inline pump and bypassed the truck...
Put an inline elec pump and run a known good fuel line to ip and prime the sys. See if it starts w/o use of stating fluid.
Using starting over the yrs may have already caused engine damage.