RE: intermittent whine sound stops when brakes applied
I originally found this post, because we are having the exact same whining problem with our brakes. Ours does continue even after we stop the car, so I'll be able to disconnect that hose and see if it stops.
My question now is in regards to a hose on my 2001 Tribute that is disconnected on one end. I just noticed it yesterday and then I saw that the hose is included in the picture you posted. I used your picture and drew arrows to the hose in question. On mine the hose is connected on the underneath side, and then it comes up through the little brace and is just sitting there. I looked all around and couldn't find a place for the hose to go.