How do you change water pump in a 1998 6cyl 24 valve mercury mystic?

To change the water pump on a 1998 6-cylinder 24-valve Mercury Mystique, start by disconnecting the battery and draining the coolant. Remove the serpentine belt and any components obstructing access to the water pump, such as the engine cover or hoses. Unscrew the water pump from the engine block, replace the gasket, and install the new pump. Finally, reassemble everything, refill the coolant, and reconnect the battery.