| I would at first take a test light and make sure you are getting power to the injection pump solenoid. I think it is a bright orange wire. It should go on and off with the key.
If good, I would open the line that goes into the injection pump from the fuel tank, and briefly turn the key on. Your electric fuel pump should expell fuel from the open line.
If checks out I would loosen a couple of the "top" fuel lines at the injection pump and see if fuel is expelled when you roll the engine over. At this point be aware if air is escaping from the open lines, but be carefull this is high presure fuel, it can be dangerous especially if you put body parts directly over or directly in the path of the "squirting" high presure fuel, (it can be injected under your skin, big problem).
If you are getting air out of these lines I would tighten the lines at the pump, and loosen the lines at each injector, turn the motor over until all of the air is expelled. (the "surging" that you mentioned can be symptom air in the lines)
If fuel or air does not come out of these lines, I am prone to believe that your injection pump is broken.
I am checking some links now on rebuilt pumps, I will post back here in a few min.
__________________ 2005 Chevrolet 3500 (Edge)
2005 Chevrolet 3500 Work Truck (5th Wheel)
w\ 45' Flatbed, 37' Van Trailer, 28' Van Trailer |