Hey, have a 1999 Hyundai Sonata, 75000 miles. The problem is, I at first thought my serpentine belt was squeeling, even though it is only about 5 thousand miles old, sprayed some of that belt dressing on and that did not seem to help the squeel. I then sprayed some wd40 on the bearing to the PS pulley and that stopped the squeel for about 3 minutes. Is this problem most likely the pump bearing going bad? If it is I am assuming that I will need to replace the pump. Any ideas on this?
Thanks JMah1

 

Sounds like the pump bearing could be on the way out, but check that the belt has not been tightened too much. This could have caused the problem in the first place. Hope this helps, Chris.