Hi there. I own a Taurus which I use as a broker for DHL. I`m driving about 120 M. a day. My power steering is making noises when I turn and when I replaced the serpentine belt I found that the steering pulley would move in and out. Sometimes it sounds like a cat screeching under the hood until I put it into drive, then the noise stops. Does anyone have any ideas as to what a pump would cost and how to replace it? I`m barely surviving on this job and can`t afford a mechanic. any help would be appreciated. Thanks.