Injection Pump Pumping Woes? Diagnose and Conquer Them

The fuel pump is only told by the computer to run for 1-2 seconds on startup and then shut off to pressurize the fuel rail. Make certain that the flex hose at the fuel tank does not have a crack(s). A crack will allow the pump to draw air into the line and result is ... If you have fuel, pump nut tightened correctly, and the shut off pulled towards the front of the truck or pulled up on.. you should see fuel ... - If the injection pump has a fuel solenoid, ensure that it is receiving power and functioning correctly. A faulty solenoid can prevent fuel ... Pull the return line off top of pump and make sure you're getting fuel out. If there's clean fuel there, loosen the nut on one of the injection ... And it was just sitting on a engine stand here.I have clean diesel fuel going into it,new primary filter plus put a new electric fuel pump on. Try pulling the wire connector apart and test the leads, there will be an orange and black (the 2 thicker wires) wires to the pump. Make sure ... The shims adjust the pump timing, and if you change the pump you'll need a set of shims to retime it. Rebuilding or tuning the pump should not require retiming. Pump Won't Prime: Loosen the fuel filter (not water separator) while the PureFlow® product only is running. This will allow the air to be ... I've traced the problem back to the FIP which isn't pumping any fuel. The FIP was completely refurbished at significant cost before refitting.