Posted 11/26/2021 06:49 (#9342190 - in reply to #9341712) Subject: RE: JD 7700 tractor engine surging
SW Ohio
While it most likely is the injection pump, you need to make sure the electric lift pump is working properly before you blame the injection pump. I once went through 2 new lift pumps from deere before I got a good one. There is a screen inside the lift pump that may need a cleaning as well
JD 7700 tractor engine surging
