How do you replace a water pump on 2002 Kia Rio?

To replace the water pump on a 2002 Kia Rio, first, disconnect the negative battery terminal and drain the coolant from the radiator. Remove the serpentine belt and the timing belt, if applicable, to access the water pump. Unbolt the old water pump, clean the mounting surface, and install the new pump with a new gasket. Reassemble by reversing the steps, refill the coolant, and check for leaks.