Ive got a 84 6.9 and i just put a new return line kit on the injectors. Now that i have got that done im not getting a bit of fuel to the injectors. I have drained all of the air out of the system (the drain on the filter, and cracking the lines on the injectors one at a time) but i just cant get any fuel coming out of those lines. When i bleed it out of the filter there is an abundance of fuel coming out. Ive tested to see if the pump was getting power and it is. This all started directly after the return line install.

 

if you drained the feed lines, it will take a while to get them bled. alot of cranking of the engine. some guys have flat towed them in gear(if manual) to force the air out and get them to fire just cause it can take so much. and rememeber only crank for 15-20 seconds then wait 5 mins to let the starter cool down.

 

ive cranked on this thing for two days and still no fuel. Now when you say they towed them in gear you're talking about pulling it in first with the clutch in the dropping the clutch??? Im willing to try anything because i need this truck and it was running fine right before i put the return lines on. I keep draining the batteries down cranking it. I feel like it should have some fuel getting to the injectors after everything i have done but they arent even dripping at the injectors.

If for some reason the lift pump went out what it a way i can test it?? I pulled the bolt on the side of it out and cranked it to see if it was filling with fuel and it seems to be slowly.

 

not your lift pump.
no loose connections were your pump could be sucking air?
couls any crud have gotten in the lines?
put the old line back on see if she goes.
put a -little- fuel in the glory hole, again a little bit and pull her down the road and in 2nd or 3rd

 

Make sure both connections on the injector pump are getting power.

 

first pull in third she fired right off. letting her sit all night to see if i loose prime in the morning! I hope not.

 

LOL 1st gear would have done nothing but **** the guy off who was pulling you. hahaha glad you got her going

 

first probly would of just dragged the *** end around.