I bought a blazer 6.2, (only a few weeks ago) the PO added electric fuel pump...I havent cranked it in couple weeks, when i attempted to, of course the battery wouldnt turn it over, so i jumped it off, it was running, as i moved my tractor it quit. I havent been able to get it cranked again. Although i can hear the pump humming when ignition is on it acts like there is no fuel. I took off the fuel line turned ignition on no fuel comes out, gage registers almost qtr tank. I added 5gals diesel....Still no crank....could i need to bleed line or prime pump? if so how? is it one man job? thanx in advance..