Noisey afterrun coolant pump

[Robert Deis]

Couple of weeks ago I noticed that my afterrun coolant pump was
sometimes making an angry buzzing sound over it's normal pleasent
water-swoosh.

Am I due for a new pump?  So far no detected leakage, but I prolly should
have one waiting if this is a ticking time bomb...

--
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  Rob Deis                  "Let the people know beforehand what the law
  MiB3347                      is and what they are to expect."
  rdeis at io.com                              -- 18th Congress, Rec. 75