T100 SR5 Extra Cab Pickup 4WD V6-3.4L (5VZ-FE) (1998)
Water Pump: Service and Repair
REMOVAL
1. REMOVE TIMING BELT
2. REMOVE WATER INLET AND THERMOSTAT
3. DISCONNECT NO.2 OIL COOLER HOSE FROM WATER PUMP
4. REMOVE WATER PUMP
INSPECTION
1. INSPECT WATER PUMP
a. Visually check the air hole and water hole for coolant leakage.
If leakage is found, replace the water pump.
If engine coolant has leaked onto the timing belt, replace the timing belt.
b. Turn the pulley, and check that the water pump bearing moves smoothly and quietly.
If necessary, replace the water pump.
2. INSPECT FLUID COUPLING
a. Remove the 4 nuts and fan from the fluid coupling.
b. Check that the fluid coupling is not damaged and that no silicon oil leaks.
If necessary, replace the fluid coupling.
3. INSPECT FAN PULLEY BRACKET