Well it seems either the pump or the ps rack is going out. (maybe both) when the car is stopped and at idle it is very difficult to turn the steering wheel. Also there is a squeeling sound when trying to turn the wheel. The sound is exactly the same sound you get when you turn the wheel all the way to the end lock then hold pressure against the lock. Hope that is a clear description. What sould I look into first, the pump or the rack?