Lift pump working,shutoff solenoid opening.Tried 3 different Pmd modules,also connected them streight to the pump instead of extension cable for remote installation.
Right now I am barking up the same tree CRAZY is.I am checking codes and outputs from the PCM to the injecter pump.Injecters lines still dripping,I also advanced and retarded the timing by loosening injecter pump nuts and slightly turning pump 1/4 inch left or right of the 12:00 mark,and slowley bringing it in to the 12:00 position while turning it over.
We will find the problem one way or another!!!
Keep the info coming,I will let you all know the outcome,I am going to kick this truck's #!%(OR DIE TRYING)
BIG JOE

 

have you try the pump at 12 Oclock see if would start

 

Yes I did Crazy,still no fuel! I did check the Lift pump PSI and the 12v signal to LP.
I did notice that when I turned the Key on,pump PSI would increase to 10,and when I cranked over,I did see the PSI drop to 0 (still had 12v). I then reset gauge and re-peated test again and got 10 psi turning key on and it dropped down to 4 when cranked.
This was repeated again 3 more times with 10 and dropped to 4.Still no fuel to ijectors when cranking.I have it at the T valve and pump inlet.I make a point to replace the ops,
(because it could of dropped out the lift pump and I didnt catch the 12v loss to LP.)
I should still have had enough Fuel PSI to pop injecters and fuel comming out from the ones already opened when I cranked motor over.
I have checked all the imputs to the fuel solenoid driver or (PMD) from The PCM,and everything checks out except the output from the PMD to the IP fuel solenoid! Is this a pulsed signal that opens up the solenoid at the precise firing sequece allowing fuel to go to the injecter??? I was looking for the + pulse to the solenoid and did not see any voltage to it when turning over engine.Does anyone know how to test this part of circuit
because that signal is processed and supplied by the PMD module.
This might be my whole problem!But I want to make sure because I have tried 3 diff. PMDs and one of them is the one that came on the rebuilt injection pump that I had just installed,(That fired engine for 5 sec with intake off,and would not start again after putting everything back together) The other PMD being puchased from e-bay used,and the old one from the bad pump taken out of truck.It would be alot cheaper if I KNEW FOR SURE, if it was the PMD to buy one than to buy a new injection pump.Never mind the ungodly ripdown and re assembly Any further info would be greatly appreciate
Thanks again,Big Joe

 

I have a simular problem with my 6.5, it appears that after reading about this same problem on literally hundreds of different posts on different websites, nobody ever has an answer, well atleast a simple answer, I have tried everything, spent about $3000 and still does the same thing. WTF

 

Whiteman on the hill,

Check out the thread "Tanks Crazy,Rican ex,ex," on the next pg of threads,If you have the same problem, I listed exactly what I did to find mine,step by step.
If you do not have the same problem,explain your problem,and the guys and I will chip in to help solve it.They helped me narrow down the problem.
Believe me,it can be cured but its finding it that takes the work. I have been working on my problem for 4 months before I found it,but I promised myself I was not going to spend another penny unless I was exactly (I MEAN EXACTLY) what the problem was.

Check it out and let us know what you think.
Big Joe