My power steering pump is having issues - loud noises when turning steering at all (especially with low revs, no gas), but more worryingly the belt drive wheel for the pump is visibly jumping every now and then even at idle. PAS fluid is all gone (could be the cause or a symptom of pump failure) so will be topping up first thing, but worried about risk of losing the aux belt altogether. So I just wondered what else it was driving - alternator presumably, what about water pump? How much damage is it likely to cause or is it just going to be an inevitable break down (flat battery or over heating)?