2000 fld 120 steering wheel rock hard it wont move,things i’ve done:flushed system and replaced filter,removed drag link and lifted the truck wheels move freely,the steering gear turns freely without drag link attached. What puzzles me the drag link moves around by hand but as soon as i put everything back together i cant streer no more,any taughts?
Steering box is only couple of years old,i dont have equipment to test the pump but im sure it never been replaced
it don't matter how old it is, they become defective even if new. I had three in a row of rebuilts that were defective. The pump pressure is important, you can buy a gauge, tee, valve and get hoses made to make a tester or bring it to someone to check, this is really the only way to see on the hydraulic end of the setup. Once you see what the pressure is, than you can rule out the pump as the problem and move to the box.