I have a Manitou Telehandler MT422FC Maniscopic. I have a fuel problem. I was doing some work and all of a sudden it conked out. Tried to restart, it spluttered and conked out again. Tried and tried then the battery went flat. Thought it might of been air in the system so bled the fuel through the top of the filter, tried again it ran for a bit then conked out again. Now there is no fuel coming out the bleed screw on the filter. Took the fuel hose off the bottom of the pump and there was very little fuel coming through. Drained the tank, took the hose and connection off, blew out the connections with a compressor, put it all back together with a new hose, filled it back up, tried again. Still no go. No fuel coming through bleed screw on top of filter or any of the injectors. Stumped!!