If the pump was noisy, thats the bearings inside screaming because they are either worn, or dont have enough oil to stay lubricated. If the system is full, and no air is left, check pressure while pump is under load. Chances are its bad. Dont rule out the rack though. They leak, and that may have been the reason you lost fluid and had the noise.
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Saturday, September 14th, 2013 AT 9:32 PM