Cummins Diesel Lift Pump Problems | It Still Runs
Cummins lift pumps have electronic solenoids on the back of the pump. An electric charge is sent to the solenoid to release an actuator telling it when to open and close. A shorted solenoid will cause the pump to malfunction. Seal. Some Cummins lift pumps are shaft-driven. When the oil seal within the pump begins to leak, the pump will not ...