LMM: power steering issue

[butch2000]

My truck is lifted , with 35's , I just purchased it , it had no power steering when I bought it , but the hydra boost brakes worked , so I thought it was the steering box ? I replaced the box , the steering worked better but not like it should , so I replaced the steering pump as well, it still just kinda works ? when your stopped it only has power assist till about half a turn , then it stops turning ? any idea's

 

[Ron Nielson]

You have changed the fluid, correct? If not, flush out all old fluid, be sure to bleed the air out of the system, and then decide if there is still a problem.