Power Steering pump was growling for about 2 months. finally decided to get it fixed when I found out that I could not buy a replacement pump. Turns out to be a dealer ony item that is back ordered. Salesman at Carquest sugjested that I try some Lucas Power steering stop leak. I said my mecanic has tried that with a different product. He issisted that I try Lucas. So I did. I had nothing to loose except for $9.15 The bottle said results are usally immidiate. the squeel stoped before I could get my hand off the ignition. I am sold on Lucas products.