318 tdshow to bleeding diesel fuel lines

read the user manual in the how to bleed the fuel system section, and bleed all of the air out of the fuel system and pump

First off you need a good battery or jumper leads as it takes a bit of cranking. You usually don't have to do it at the pump you crack it were the hard line goes into the injector. Back that nut of just enough that you can wriggle the hard line just a little. Then crank the motor over until you see that there are no air bubbles coming out with the fuel. Then tighten the nut while still cranking, after a couple have been bleed the engine will try to run. After the engine is running repeat the bleeding process to each injector again. It does help if you can hook you some low pressure air to the fuel tank and make sure that the fuel has reached the filter and pump before you start.

This is not unusual on a diesel. What happens is there is air in the system. If this vehicle has an electric fuel pump loosen line where fuel enters injection pump then turn ignition key to the on position and watch for fuel to appear and then quickly tighten line before turning off key. Then try to start. If does not have electric fuel pump will need a second person. One will loosen line and watch while other cranks vehicle until you get fuel and tighten line before the other person releases ignition switch unless vehicle starts first. If that doesn't do the job do this where line hooks onto each injector. Probably will not have to do this to all injectors but could run rough until all the air gets out of everything. I have farmed with diesel tractor for 25 years and dad I drove the gm vehicles with the 5.7. You normally don't start a diesel without bleeding the air out of the lines although some will self bleed most won't. Hope this does the trick.

check fuel line for minor leaks and check valve also check the filters sounds like air bound problems

may have a leak in the fuel line letting air in/ diesel engines need to be air tight/ look over all possible lines and injectors may be loose had same problem/ another poosibility may be low pressure fuel pump under driver side of chasis not holding pressure and letting fuel back in to tank

Make sure all lines are light when turning engine over.While turning engine over loosen the a line closes to pump or the fuel filter.You should get some fuel.Then continue on all lines working farther away.

Disels are simple, if they have fuel and compression at the right time and in the right quantities they will run fine. You might just have a blocked filter. If the mileage is moderate your injectors or pump might be the problem and the symptoms might have started quite quickly. If the mileage is high, it could be a worn engine in which case it would have got worse over a period of time and you might be using oil. Have a diesel specialist look at the injectors first, then the pump and the engine last unless he can see something obvious.

hello,seems you have a loose clamp in fuel hose or your fuel hose have crack in area of clamp,also you can visual check fuel supply line,fuel filter up to primary pump,ty

check the crank sensor