Car only has 65,000 miles. I put in a Motorcraft reman pump in March because it had an aftermarket pump that was leaking bad. Pump was quiet after that but recently it has started again making noise when turning the wheel in parking lot maneuvers. Also it has a leak from some other point such that I can smell and see smoke as the fluid hits something hot like a manifold or exhaust. Haven't been underneath yet to investigate. Would fluid leaking out somewhere also allow air into the system causing the whine? Would anything mechanical with the rack cause a whine?