John Deere 5075E Running Rough / Surging - Replacing Both Fuel Filters - Let's Figure This Out

This is a real diagnostic session, not a walkaround: an owner tackles a 5075E surging and bucking under load, tracing it to a clogged in-tank fuel sock rather than jumping straight to the main filter. He drains the tank, pulls and shows the plugged filter sock, splices a chewed return hose, then replaces the main spin-on fuel filter and bleeds the system. Useful for owners troubleshooting rough-running or surging symptoms on the same engine.

An owner-operator working on his own tractor and narrating the repair as he figures it out, mistakes and all.