hard power stering 03 lincoln town leaks/fluid full look like pump ok on 2003 Lincoln Town Car

after i start the 03 lincoln and i try to stering the stering is very hard in both direction..i check lor leaks and everything look ok...I have no noice when I turn the wheel rack and pinion look ok...the mile on the vehicle are 155.000.but look like new...

Asked by for the 2003 Lincoln Town Car
rack and pinion valving is most likely bad
can i replase the valve my self if I take down the rack and pinion.?????and when I can buy a valve ar a kit ..
no you can't its internal you should repl the intire rack and get alignment when you are done