That is good to know. I have yet to come across a leaky water pump. I have been bringing it to the Chevy service department regularly since was under warranty. I just passed 30k miles.
One thing that the service department said was "regular" that I don't remember when I first got it is a dead spot in the power at around 2500 - 3000 rpm. It even causes the car to buck sometimes in first gear. Any thoughts?