No Fuel (95 Silverado 6,5)

[valyidol]

Yesterday I went to do the TDCO. Suddenly the truck began to lose power and died. It looks like a faulty PMD. But the new PMD did not help. I checked how the shut-up solenoid works. It works. Fuel does not flow to the injectors. Sometimes, if I turn the starter for a long time, the diesel starts and then stops again. I think I need to check the connector maybe to have a bad contact. What other reasons can there be?

 

[snarl95]

Hows the lift pump working?

 

[deejaaa]

OPS and/or harness. bumped loose?

 

[valyidol]

It was lift pump. Thanks

 

[Will L.]

Bad lift pump should have let fuel get sucked through by the injection pump. Do You have a non fail on flow lift pump?

Get a fuel gauge on there that reads just before the injection pump. A cheap addition that is instant diagnosis of problems, and gives a warning when the lift pump is going bad. That is when the fuel pressure gauge pays for itself. Bad lift pump makes the injection pump suck fuel by itself- and this causes the injection pump to wear out much much sooner than it should.

If your lift pump is a flow on fail, and the injection pump can no longer suck fuel through the lift pump from the tank- save up money now- you are about to buy a new injection pump. It will have worn the head so bad it may not be rebuildable.