Unleashing Engine Potential Injection Pump Troubleshooting for Pumping Recovery

Run the starter long enough to turn the pump (hopefully nothing is stuck internally....) enough to purge out all the old fuel from the pump and ... Its pretty normal for fuel filters not to fill completely up as the needle seat shuts fuel off fuel is no longer pumped so air is trapped in the filter. The Boating Forum - fuel pump not pumping fuel - Well I have a 1998 johnson 225 with a VRO fuel pump, I recently rebuild the pump with the two recommended ... Possible causes include a fuel camshaft with a soft lobe that isn't actuating the pump, or (2) the pump is leaking backward and not making pressure. A dealer ... 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 ... The pump is pumping fuel out a crack in the return line between two of the injectors. The shutoff is not pulled out. There shouldn't be fuel flowing out the ... Turning to the key to the on position will turn fuel pump on for a couple of seconds to prime fuel rail. It will not keep fuel pump running. I think whats happening here is the pump is going into prime mode.But the ECM is getting an incorrect start signal which is shutting down the ECM. Take the solenoid out and remove the plunger so it lets fuel pass. Then reinstall without the plunger and start the engine and see if it runs. 1999 - 2006 (GMT800) - 03 silverado 2nd brand new fuel pump not pumping fuel - I changed out old pump with a new one and it would turn on ...