[Brian]

My car deveolped a problem with pretty much the same symptoms as Ricochet's: Almost 3 weeks ago, after the car sat for 2 weeks, a belt started squeeling. I especially noticed it when steering, and the p/s would sometimes jerkily cut out-and-in when turning the wheel sharp, especially while pulling out of a parallel parking space. I finally got around to checking the belt, which I'd just changed in June, and it didn't seem loose, but the belt was hot after just a few minutes of running. I tightened (or possibly loosened) it just a smidge anyways. I also noticed at this time, that the pulley would intermitently "stall" while I cut the wheel. I feared - and was told - that my p/s pump was going bad. Then I checked this thread and it's prequel. I replaced the O-ring today, used Dexron III ATF to replace the fluid I'd siphoned out, and drove my car for about 40 minutes. The squeal has not entirely disapeared, though. (When I looked under the hood and had someone turn the wheel, the pulley wasn't stalling, even during the squeal.) I'm not sure what to think now.