Originally Posted by lacroix
if power steering pump was removed , u must bleed it by turning side to side and filling while engine running.
Put the front wheels up in the air and turn from all the way left to all the way right over and over again with the car running and add fluid if needed. If it's the pump itself making the noise you may have starved it of fluid at startup and burned it out. If it's the rack then you just have air in the system and need to get it out.