Injection Pump Pumping Failure A Mechanic's Guide to Resolution

The fault is not in our senders, But in ourselves. W. Shakespeare, SAE Master Technician Globe Garage, London. 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 ... Bypass your current fuel supply, fully loosen injector lines and see if you get any squirting. ... Have someone crank the engine while you hold ... We will explain how to repair fuel injection pump properly. It also explores what are the diesel injector pump failure symptoms. Whenever the fuel injector pump's O-rings or ball seats are defective, the timing of the fuel transfer process is disrupted. This is a common ... The pump works fine when I have the fuel line disconnected from the unit and pums out a good flow of diesel but when I re connect and start it up it fails to ... Try pressurizing the fuel tank with an air hose, and use a rag to seal it. Are you sure the injection timing is correct? You need special tools ... Try flipping the on/off lever to see if it might free up. other wise the top of the pump has to be removed to free it. A spinning pump doesn't mean you have fuel delivery. To confirm that you need to securely fit a fuel line onto the output nozzle and pass it to a jar then ... If the spring breaks or the piston gets stuck the pump can get stuck in prime mode. Not sure if that's your problem but it's easy to check.