Might have air in the system causing cavitation. Is the fluid bubbly?
The belt may be slipping also. IF you watch it while someone else turns the wheel you may be able to pick it out.
IF nothing conclusive, use a stethescope to help narrow down the noise source. I would start at the pump. PRobably is the pump.
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Sunday, August 30th, 2009 AT 10:09 AM