This one time i was driving in circles with a few friends in the car because my compass tends to loose it's calibration randomly... well I was driving in really fast tight circles (yes, I know your not supposed to) and i blew out my power steering. I twisted the shaft in the actual pump, and it broke off. It was a pain in the **** to get the pump out and replaced. The pulley puller for the pump was so close to the fan that it was hard to maneuver, I finally got everything out, (by the way its like a puzzle trying to get it around lines and such....) and i unbolted the resevior.... well guess what there was a large flat nut on the back, I didn't even see it I thought it was part of the piece. I ended up bending the resevior trying to pry the pump out. What a nightmere... anyway the moral of the story is, those lines, that pump, and everything that has to do with working on it can be wicked tricky and messy.