Check to make sure you have proper fuel pressure going to the injection pump, atleast 14 psi. Make sure the lift pump is not running while you are trying to crank the truck. The lift pump should run when the Key is first turned then stop when the wait to start light goes out, once truck starts the lift pump should turn back on. If the VP is recieving constant fuel pressure when it's trying to start it won't, or will start hard.
Crack the fuel lines and bleed them. Should be a high pressure spray/mist coming out around the fuel line nut while cranking, not just wet. Sometimes when I have a really stubborn engine I will take off the boot at the intake horn and mist wd40 in and crank it. That always works for me.
Crack the fuel lines and bleed them. Should be a high pressure spray/mist coming out around the fuel line nut while cranking, not just wet. Sometimes when I have a really stubborn engine I will take off the boot at the intake horn and mist wd40 in and crank it. That always works for me.
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