Was out driving today and noticed that the engine temps were a little higher than usual. As I slowed down, they climbed higher. When I went to turn off the expressway, I also noticed that I had no power steering. Pulled over and popped the hood. Fan wasn't working, so I checked the p/s fluid level. It was full and I could see the fluid moving in the reservoir, while the engine was running. So, I'm assuming the pump is working. Any ideas? I'm thinking that some how the module that the fluid goes through in the back of the fan, has gone bad?