Power Steering Noise....
When you install a new pump and fill for the first time there is a procedure you go thru to bleed the pump.
If the whining continues it's more than likely the pump is starting to go - I had a Ford Deathstar van back in the days of kids and had a lot of trouble with PS noise repeatedly...
If the noise persists after flushing, the pump is on its way out. However, the noise can remain for quite a while depending on usage and really won't affect the pump's performance. Eventually the pump will die, but frequent fluid replacement (say, annually) will prolong the pump's life. That's what worked for me until I got a Turn 1 PS pump.






