How do you change the water pump on a 2003 Chrysler pt cruiser?

To change the water pump on a 2003 Chrysler PT Cruiser, first, disconnect the battery and drain the coolant. Remove the serpentine belt, then take off the timing belt cover and timing belt to access the water pump. Unbolt the old water pump, clean the mounting surface, and install the new pump with a new gasket. Finally, reassemble everything in reverse order, refill the coolant, and reconnect the battery.