Re: noisy power steering gtv i think
Whirring will eventually turn to grinding as level gets really low. In experience with other cars, the actual feel of the steering is unimpaired until the level is extremely low. If the fluid is low is could indicate the rack beginning to fail. Again from experience with my current car this isn't always apparent as lost fluid can collect in the rubber gaiters rather than obviously onto the road and only when the seals are totally gone will is start pouring out the bottom of the car. Hope that's useful, if very general advice.