Engine/Transmission (1994 - 1998) 12v dies

[JFaughn]

Just thought of an other , the linkage for the fuel shut solenoid , there is adjustment spec. for it , if its just at the edge of the adjustment , some vibration could pop it to the off pos.

 

[SLangegger]

I think the problem is the lift pump. I started the truck and pinched off the return line. The pressure only went to 30-32psi. I thought I have read that it should peg a 60lb gauge? Is it even worth doing a leak test? Im having a hard time throwing $160 at the truck for no reason, but I want it fixed too. What would you guys do?

 

[JFaughn]

The reasons are there , quit blowing off the test results , thats what testing is for , to show whats wrong , test pressure after LP , to see if overflow valve is good ,
Like any problem , there may , or may not be , more than one problem , but you need to fix them as you find them , not pick what you want & fix , thats if you want to fix with the least hassle .
I do not have the link [ on old dead computer ] but do a search for Performance diesel & injection , Marty Thompkins , MI , the last time I checked , it was just under $150 for LP , OFV & sh.

 

[SLangegger]

JFaughn,



I will replace the lift pump, and post back. The OFV has already been replaced. Thanks for your help.

 

[JFaughn]

How about the pressurizing the tank to find air leaks on the suction side & fuel leaks on the pressure side ?
The air leaks can cause low pressure also .
If you already have OFV , Marty Thompkins lift pumps were $95 .
But confirm with testing , using test above .

 

[SLangegger]

JFaughn,



I will install the new lift pump, and pressure check the system this weekend. Thanks again.