FSOV? (Fuel System wiring question)

[tlflow]

after Getting the fuel system leaks sorted out, I’m still having an issue with the truck shutting down once it warms up and i load it up. As soon as I throttle up, it just dies like like I cut the switch off, the FSOV wires were frayed, so I replaced the crimp on eye. I also checked ground straps and tested continuity, found no bonding/grounding issues, other than maybe the instrument cluster ground is not ideal. Still have the same issue except after repairing frayed wires, it still dies, but now it kind of coasts in for a landing, then dies. When I screw in the thumb screw doesn’t shutdown … so, is the solenoid bad, or do I have another problem?

 

[simp5782]

after Getting the fuel system leaks sorted out, I’m still having an issue with the truck shutting down once it warms up and i load it up. As soon as I throttle up, it just dies like like I cut the switch off, the FSOV wires were frayed, so I replaced the crimp on eye. I also checked ground straps and tested continuity, found no bonding/grounding issues, other than maybe the instrument cluster ground is not ideal. Still have the same issue except after repairing frayed wires, it still dies, but now it kind of coasts in for a landing, then dies. When I screw in the thumb screw doesn’t shutdown … so, is the solenoid bad, or do I have another problem?

Bad solenoid. As long as you have 24-28v at the solenoid while operating then the solenoid is bad

 

[tlflow]

Thanks

 

[tlflow]

I noticed some fuel leaking today and found the FSOV seems to be the source of the leak.
This is an M936, so the PT pump is variable governor model and the FSOV is between the pump and the engine.

(I cleaned the fuel pump off real good with carb cleaner and air dried it, and this is the highest point of fuel leak)

 

[tlflow]

the o-ring between the FSOV and the PT pump was leaking, I guess when I got all the air leaks fixed the fuel pressure was a smidge higher and made some drips? Once I replace the o-ring, no more drip. The FSOV is on the back of the PT pump on the M936. somewhat slow, tedious job. Truck hasn't shut off since I got the new solenoid installed. Thanks. ... and now the dang inner seal on front axle is leaking again ...