I have a '96 Buick Roadmaster Estate Limited. Power Steering works sporadically. I replaced the power steering fluid and had the belt replaced. It sometimes makes noise when you go in reverse with the wheel turned hard in one direction. Very hard to turn in parking lot situations. Do I need a new Power Steering unit? Is it worth pulling one from a junkyard? Motor is the Corvette LT-1 motor, a real pain to work on according to my mechanic. Thanks! Rick
