To replace the water pump, you will need to:
1. Disconnect the battery.
2. Drain the coolant from the radiator.
3. Remove the serpentine belt.
4. Remove the water pump pulley.
5. Remove the water pump mounting bolts.
6. Remove the old water pump and gasket.
7. Install the new water pump gasket and water pump.
8. Install the water pump mounting bolts.
9. Install the water pump pulley.
10. Install the serpentine belt.
11. Refill the radiator with coolant.
12. Connect the battery.
The total time to replace the water pump is about 1-2 hours.