this thing happened to me on may 24th... hot day, autoxing, my ps fluid overheated foamed and once i let it cool down the power steering started working.. but not to its full capacity. i ended up having to get the power steering pump and rack replaced. thank god i still have the warranty on my car.
2004 Black SVTF Build #929 out of 1978
ICH MAG SCHNELL FAHREN