Water Pump: Service and Repair
Removal and Installation
Water Pump
1. Drain engine coolant.
WARNING:
System is under high pressure when the engine is hot.
To avoid danger of releasing scalding engine coolant, remove the cap only when the engine is cool.
2. Loosen the alternator tension adjusting bolt (A) to loosen tension.
3. Remove the drive belt (A).
4. Remove the water pump pulley (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
CAUTION:
Tighten the bolts diagonally when installing.
5. Remove the water pump (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
NOTE:
Install the water pump with a new gasket.
6. To install, reverse the removal orders.
7. Fill with engine coolant.
8. Start engine and check for leaks.
9. Recheck engine coolant level.
Water Temperature Control Assembly
1. Drain engine coolant.
2. Disconnect the battery negative terminal.
3. Remove the air duct and air cleaner assembly.
4. Disconnect the engine coolant temperature sensor connector (A).
5. Disconnect the radiator upper hose (A).
NOTE:
Install the radiator hoses as shown illustrations.
6. Disconnect the heater hoses (A).
NOTE:
Install the heater hoses as shown illustrations.
7. Remove the water temperature control assembly (B) after disconnecting the throttle body cooling hose (A).
Tightening torque :
9.8 - 11.7N.m (1.0 - 1.2kgf.m, 7.2 - 8.7lb-ft)
8. Remove the intake manifold.
9. Remove the heater pipe (A).
Tightening torque
M6 bolt and nuts :
9.8 - 11.8N.m (1.0 - 1.2kgf.m, 7.2 - 8.7lb-ft)
M8 bolt :
18.6 - 23.5N.m (1.9 - 2.4kgf.m, 13.7 - 17.4lb-ft)
10. To install, reverse the removal orders.
CAUTION:
Clean the surface of the water temperature control assembly before installing.
Inspection
1. Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary.
2. Check the bearing for damage, abnormal noise and sluggish rotation, and replace the coolant pump assembly if necessary.
3. Check for coolant leakage. If coolant leaks from hole, the seal is defective. Replace the coolant pump assembly and gasket.
NOTE:
A small amount of "weeping" from the bleed hole is normal.