Hey all, I have an L4330 4WD. Changed hydraulic oil and filter, then put about 3 hrs on the tractor with no issues. I parked it over night and first thing the next morning the power steering was out. 3 point hitch works fine. Tried to bleed lines on steering cylinder for hours and no success. All lines have fluis getting to them. i changed the clamps on the suction hose on the pump. It does turn much easier with engine running faster. Someone said the steering controler made be bad. Anyone have an ideas?