My car has 125K miles on it and the water pump +all belts were done around 100k. Now a god-awful, ball-bearings-gone-bad noise started a few days back and it's coming right from the water pump pulley area. I removed the ac/ps belt and those units are noise free. No leaks or overheating happening, and from the noise, you'd think the water pump shaft is shot by now. Anything else I might be missing that could be in there? I had another car make the exact type of noise and it was a tensioner pulley. But we have no accessory tensioner pulley so I'm left thinking water pump.