Replace waterpump
There is no water pump on any of the window regulators in your vehicle.
If you are asking how to replace the water pump on the front of the engine, you will need to drain and retain all coolant, remove the fan shroud, all belts, the fan clutch and fan assembly, all hoses leading to and from the water pump, remove all bolts affixing the water pump to the engine block, and carefully pry the water pump from the engine block. Clean all mounting surfaces, and replace the water pump with a new or rebuilt unit, using a new mounting gasket. It is also advisable to replace the thermostat and radiator cap when replacing the water pump, and it is also a good time to replace all radiator and heater hoses.
Once you have re-torqued all bolts to specification, reinstall belts, fan clutch, shroud, and hoses, then fill the radiator with a 50/50 mix of FILTERED OR DISTILLED WATER and etylene-glycol antifreeze. Start the engine, allow it to warm up, check for leaks, then again check coolant level after the vehicle has cooled.