On my way to work yesterday I was pulling off the freeway when I heard this loud squealing noise. Then when I went to make a turn I found I had no power steering. Popped the hood to discover that my power steering belt was at a stand still. I tightened it up a bit and now it just barely spins and still no power steering. Does it sound like I need a new pump or is it something else? Its a 1994 KA24E.