If it is leaking or noisy then it is bad. You should also be able to see the coolant flow with the engine cool and radiator cap off. Give it time to warm up and you will see the movement of coolant if it is working.
you do nothing
Could you tell me how would you replace the oil pump on a Mazda Protege?
Replacing the 1997 Mazda water pump will cost approximately $300. The water pump will cost about $75 and will require four hours of labor.
This year Mazda protege does not have a serpentine belt. It has two belts, one for the alternator/water pump, and the other for the power steering and a/c.
powersteering belt off first, then water pump, each has its own ten.
Check the engine thermostat.
In the gas tank.
The water pump is under the timing belt cover. To access the water pump, you must first remove both belts, the water pump pully, and the timing belt cover.
in the petrol tank
location of fuel pump relay
To replace the water pump on a 1994 Mazda Protege, first disconnect the negative battery terminal and drain the coolant. Remove the serpentine belt and any components obstructing access to the water pump, such as the timing cover. Unbolt the old water pump from the engine block, clean the mating surfaces, and install the new pump with a new gasket. Reassemble everything in reverse order, refill the coolant, and check for leaks.
Check the timing belt Answer - My 99 Protege was leaking out coolant slowly out of the water pump. A seal on it had gone bad and the pump needed to be replaced. Haven't had a leak or an overheat since new pmp was installed.