How do you replace the water pump in a Mitsubishi lancer?

To replace the water pump in a Mitsubishi Lancer, start by disconnecting the negative battery terminal and draining the coolant. Remove the timing belt or serpentine belt, followed by the water pump mounting bolts. Carefully take out the old pump, clean the mounting surface, and install the new pump with a new gasket. Finally, reassemble everything in reverse order, refill the coolant, and check for leaks.