Mrs. H’s mum’s car has an awful noise coming from the power steering pump. It happens under load (e.g. turning the steering wheel while stopped). The pulley stops turning and the belt slips when this happens. The fluid is topped up.
I don’t know anything about hydraulic steering, so I don’t know if the pump is dead, or what. Can anyone explain the power steering facts of life for me? (Gary T, are you out there?)