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Question:

where does a car water pump leaks at?

2001 buick centurywater runs down at area of crank shaft

Answer:

It am be leaks at them hole.
on the very bottom of the pump there is a weep hole. This leaks the coolant once the pump bearing seal deteriorates and pours coolant over the area of the crankshaft...gl
I concur with the weep hole definition. However, when coolant starts to leak through that hole, it is time for a new water pump. Which engine do you have? If you have the 3800 V6, that pump is fairly easy to change. The 3100 and 3400's water pumps are also fairly easy to do with some twisting and turning of the hands. Either way, make sure you get the right water pump for your engine.

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