2000 Nissan Maxima radiator repair

If the water pump is weeping coolant then it's definitely on its way out.

Drain the cooling system.
Remove or disconnect the following:

Negative battery cable
Coolant reservoir tank and bracket
Upper mounting bracket
Upper radiator hose
Oil cooler lines, if equipped
Lower radiator hose
Cooling fan and condenser fan
Fan motors and shields
Radiator

To install:

1.Install or connect the following:

Radiator
Fan motors and shields
Cooling and condenser fans and torque the bolts to 44 inch lbs. (5 Nm)
Lower radiator hose
Oil cooler lines, if equipped
Upper radiator hose
Upper mounting bracket
Coolant reservoir tank and bracket and torque the bolt to 44 inch lbs. (5 Nm)
Negative battery cable

Fill the cooling system to the proper level.
Start the vehicle, check for leaks and repair if necessary.