[Born2bwild1191]

So the other day i got in my car (87 924S) and started it up. It was cold (about 35) so i sat there to let it warm up for a few minutes before backing down the driveway. As i started to back out, there was a sort of screeching noise every time i moved the wheel. I immediately shut the car off and looked at the power steering fluid. It had plenty of fluid, but i noticed that it was kind of foaming up and bubbling. I wasn't at home and i had to get it home, so i decided to go for it and drive it. As soon as i got out of the driveway and moving forward it was perfectly fine. it hasn't done this for about 2 days now but i'm still concerned. Could it have been from the cold weather? Or Water in the line or something? or maybe just a freak thing? Any opinions would be appreciated. Thanks!

-Josh