TurboRacer

I have air in my fuel lines.. Truck won't start!
When you bleed the fuel lines: Do you crack the lines from the Injector Pump Or Do you crack the lines from the Injectors? Do I have to crack all 6 lines to release the air? One at a time, or 3 and 3?

mrclean

Crack the banjo fitting at the inlet of the injection pump. Cycle the lift pump(bump the key to "start", but don't try to start the engine), you'll hear the lift pump run for about 20 seconds. Continue to do this until fuel is flowing from the loose banjo fitting. Attempt to start the engine. Often, it will start right away, but you may have to crack an injector line or two. Usually, you can just crack the 1 and 2 lines. Cycle the lift pump again until some fuel flows, close 'em up and it should start. It will likely run badly for a short time until all the air is out, so don't be alarmed. HTH

cnhdoc

crack the lines at the injector to get air out from ip to injector. i would crack at least the first 3 but all would be best it will run smoother right away. once you get fuel from the lines without air tighten em up and try to start. once it starts i usually bump the idle up 1000 1100 or so and run for a min or so.

TurboRacer

Thanks for the help guys... I cracked 1,2, and 4 lines to the injectors. Bumped it. Nothing came out of #4, but 1 and 2 were squirting bubbles like Champagne. Gave it gas, bubbles cleared, re-tightened. Truck kept running!

johnh

you didn't run out of fuel, did you?