Water Pump: Service and Repair

Coolant Pump Replacement (2.4L)

Special Tools

EN 46104 Water Pump Pulley Holding Tool

Inspection Procedure

1. Remove the radiator surge tank assembly. Refer to Radiator Surge Tank Replacement (Service and Repair).
2. Remove the generator assembly. Refer to Generator Replacement (2.4L) (Service and Repair)Generator Replacement (1.8L) (Service and Repair).
3. Remove the right engine mounting insulator subassembly. Refer to Engine Mount Replacement (Service and Repair).
4. Remove water pump pulley. Refer to Coolant Pump Replacement (2.4L) Coolant Pump Replacement (1.8L) (Service and Repair).




5. Inspect water pump assembly.
6. Visually check the drain hole (2) and air hole for coolant leakage.
If leakage is found, replace the water pump assembly.




7. Turn the pulley, and then check that the water pump bearing moves smoothly without making a "click" sound.
If it does not move smoothly, replace the water pump assembly.
8. Install the water pump pulley.
9. Install the right engine mounting insulator subassembly. Refer to Engine Mount Replacement (Service and Repair).
10. Install the generator assembly. Refer to Generator Replacement (2.4L) (Service and Repair)Generator Replacement (1.8L) (Service and Repair).
11. Install the radiator surge tank assembly. Refer to Radiator Surge Tank Replacement (Service and Repair).

Removal Procedure

Warning: Refer to Battery Disconnect Warning (Service Precautions).

1. Disconnect cable from negative battery terminal. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair).
2. Remove the left engine under cover.
3. Remove the right engine under cover.
4. Drain the engine coolant. Refer to Cooling System Draining and Filling (Service and Repair).
5. Separate the radiator reserve tank assembly. Refer to Radiator Surge Tank Replacement (Service and Repair).
6. Remove the v-ribbed belt. Refer to Drive Belt Replacement (Service and Repair).
7. Remove the generator assembly. Refer to Generator Replacement (2.4L) (Service and Repair)Generator Replacement (1.8L) (Service and Repair).
8. Remove the right engine mounting insulator subassembly. Refer to Engine Mount Replacement (Service and Repair).




9. Using EN 46104 , remove the 4 bolts (1, 2, 3, 4) and water pump pulley.




10. Remove the clamp (1) of the crankshaft position sensor from the water pump.
11. Disconnect the wire of the crankshaft position sensor from the clamp bracket.




12. Remove the 4 bolts (1,2, 5, 6), 2 nuts (4, 7) and the clamp bracket.





Note: Tape the screwdriver tip before use.

13. Using a screwdriver, pry between the water pump and cylinder block, and then remove the water pump.

Installation Procedure

1. Remove any old gasket sealer material from the contact surface.





Note:
* Remove any oil from the contact surface.
* The parts must be set within 3 minutes after applying sealant. Otherwise, the material must be removed and reapplied.

2. Apply a continuous line of Three Bond 1217B (1) or equivalent, GM part number 12378521 (Canadian part number 88901148).

Standard Seal Diameter: 2.2 to 2.5 mm (0.0866 to 0.0984 in)





Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the water pump and the clamp bracket with the 4 bolts (1, 2, 5, 6) and the 2 nuts (4, 7). Tighten the bolts to 9.0 Nm (80 lb in).




4. Confirm that the wire harness of the crankshaft position sensor is secured to the wire harness clamp bracket (1) through the back of the rib of the timing chain cover.
5. Install the wire harness clamp.




6. Install the water pump pulley with the 4 bolts (2, 3, 4, 5) and tighten to 26 Nm (19 lb ft).
7. Install the right engine mounting insulator subassembly. Refer to Engine Mount Replacement (Service and Repair).
8. Install the generator assembly. Refer to Generator Replacement (2.4L) (Service and Repair)Generator Replacement (1.8L) (Service and Repair).
9. Install the v-ribbed belt. Refer to Drive Belt Replacement (Service and Repair).
10. Install the radiator reserve tank assembly. Refer to Radiator Surge Tank Replacement (Service and Repair).
11. Connect the cable to negative battery terminal.
12. Add the engine coolant. Refer to Cooling System Draining and Filling (Service and Repair).
13. Inspect for coolant leaks. Refer to Cooling System Leak Testing (Component Tests and General Diagnostics).
14. Inspect the reservoir tank engine coolant level.
15. Install the right engine under cover.
16. Install the left engine under cover.