Decoding Injection Pump Pumping Problems Expert Analysis

Try backing out the bolts on the pump side. If it works, then you'll need to pull the pump and make sure you didn't bend the push rod. Causes and Prevention of Diesel Fuel Injection Pump Failure · Cause: Incorrect Fuel - Even just putting petrol fuel in your diesel engine can ... 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 ... The mechanical fuel pump is not pumping at all, bowl is full, filter is full... took the pump off and tried moving the lever and it pumps fine. The diagnosis from the seller was that the "fuel pump" wasn't working and there was voltage at the pump, but no pressure at the fuel manager. Bleed the fuel system per the manual - if you have one. If the pump is indeed bad it can probably be rebuilt. A local shop was able to rebuild ... The fuel pump relay energizes from pulses coming from the ignition module, so if its generating pulses the fuel pump is pumping. Not 100 ... 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 ... 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. We will explain how to repair fuel injection pump properly. It also explores what are the diesel injector pump failure symptoms.