Here is a drawing of your components

Fuel System Components - 24-valve Cummins Turbo Diesel engine.

1. Fuel Transfer (Lift) Pump
2. Fuel Return Line (to Fuel Tank)
3. Fuel Supply Line (Low Pressure, to Engine)
4. Fuel Heater
5. Water-in-Fuel (WIF) Sensor
6. Fuel FilterlWater Separator
7. IA T Sensor
8. Map (Boost) Sensor
9. Fuel Drain Manifold
10. CKP Sensor
11. CMP Sensor
12. Overflow Valve
13. Drain Valve
14. Fuel Pressure Test Potts
15. ECM
16. ECT Sensor
17. Fuel Injection Pump
18. Throttle Lever Bell Crank and Apps
19, High-Pressure Fuel Lines
20. Fuel Injectors
21. Fuel Heater Temperature Sensor (Thermostat)
22. Oil Pressure Sensor
23. Fuel Injector Connector
24. Drain Tube
25. Intake Manifold Air Heater/Elements

there should be a schrader valve on the banjo bolt at #12's location. You can hook up a test gauge there. Then just bump the starter, the LP should run for about 30 seconds.
You don't want any less than 5psi.
You can't rebuild the VP44, it can only be done by a Bosch rebuilder.

 

thank you i will hook up the gauge and see how much pressure i have. will let everyone know what happened

 

im voting vp44, my grandfathers truck done the exact same thing when his went out a couple years ago, the cheapest ive seen them new have been from places like schieds or xtremediesel.com. also give sandrdieselconcepts.com a call. he got my buddy one for 800 bucks new

 

Cheapest isnt always the best especially on a VP44.

 

you want a good vp that will be warrantied when you tap the pump wire. I have found that it's not an if you do but a when you do it.

 

Blue Chip

Diesel Dawg Performance

 

true, these are brand new factory pumps, not rebuilt ones, they just offer them at dealer cost or so they said