Hopefully someone could help me I was just at shops and when backing out of parking bay I had to turn the wheel on the spot. When turning the wheel it goes stiff and feels something like a notchy feel as it goes tight then loose then tight and at same time I can here a slight Squeeky/ belt type slipping noise but it's not a belt screech. When driving its normal only while stopped. It only started after a outing over the weekend. I'm thinking maybe a loose power steering belt but not sure. Any thoughts?