How do you change 2004 Saturn ION water pump?

To change the water pump on a 2004 Saturn ION, first, disconnect the battery and drain the coolant. Remove the drive belt and the engine cover if applicable, then unbolt the water pump from the engine block, carefully detaching any hoses connected to it. Install the new water pump with a new gasket, reattach the hoses, replace the drive belt, refill the coolant, and reconnect the battery. Finally, start the engine and check for leaks.