Sounds about right for a 14 yr. old W-body to me. If you're lucky it's the pump or the return line (low pressure rubber line). If not, then it's time for a rack most likely. I nursed my old rack along with some Lucas PS additive for almost 2 years before it almost locked mid-turn one day. Luckily these cars aren't too hard to find parts for yet at reasonable prices and there are also many other years/cars that could work.