E46Fanatics - View Single Post - Does a water pump fail more with age or mileage?
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Old 11-19-2012, 04:32 PM   #21
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Join Date: Apr 2012
Location: New Bern, NC
Posts: 973
My Ride: '04 Cadillac Deville

This was the noise my car had when the water pump bearing was going bad. I replaced all of the pulleys and belts thinking it was the problem and it still made the noise. Another sign of the pump going bad was one day I inspected the ET and found the coolant level was low. Turns out, it was leaking at the O-Ring and had lots of chalky white residue at the bottom near the weep hole. The pump only had 60k miles on it.
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