[GuyO]

I have this problem now. New plastic tank, new sending unit with screen, new mechanical pump and the truck ran before rebuild. Tried bypassing the new tank by running a short hose to a gallon of gas. Nothing. Installed another new mechanical pump. Still nothing. Sucked gas up the lines to be sure they were not obstructed and getting fuel, they were. Removed second new pump and checked that the push rod was free and moving up and down, it was. Held the rod with a 3/8 bolt in the top hole, reinstalled pump still nothing. Bought a electric pump fuel tonight but I think I need to change my cam. I am hoping that the push rod is getting stuck and after I get the truck running it will be lubricated enough to function. Hoping!