Water Pump: Service and Repair

Coolant Pump - 3.7L













Removal

1. Remove the air cleaner outlet pipe. For additional information, refer to Intake Air Distribution and Filtering Diagrams.

2. Loosen the 4 coolant pump pulley bolts.

3. Remove the accessory drive belt. For additional information, refer to Accessory Drive Service and Repair.

4. NOTICE: Cover the A/C compressor belt to prevent coolant contamination of the belt.

Completely cover the A/C compressor belt with waterproof plastic.

5. Remove the thermostat housing. For additional information, refer to Thermostat Housing - 3.7L Thermostat Housing.

6. Remove the 4 bolts and the coolant pump pulley.

7. Remove the 7 bolts and the coolant pump.
- Remove and discard the gasket and the O-ring seal in the coolant pump.

Installation

1. Lubricate a new O-ring seal with clean engine coolant and install it in the coolant pump.

2. Position a new gasket and the coolant pump and install the 7 bolts finger tight.

3. Tighten the coolant pump bolts in the sequence shown in 2 stages.
- Stage 1: Tighten to 10 Nm (89 lb-in).

- Stage 2: Tighten an additional 45 degrees.





4. Position the coolant pump pulley and install the 4 bolts finger tight.

5. Install the thermostat housing. For additional information, refer to Thermostat Housing - 3.7L Thermostat Housing.

6. Remove the plastic from the A/C compressor belt.

7. Install the accessory drive belt. For additional information, refer to Accessory Drive Service and Repair.

8. Tighten the 4 coolant pump pulley bolts to 24 Nm (18 lb-ft).

9. Install the air cleaner outlet pipe. For additional information, refer to Intake Air Distribution and Filtering Diagrams.

10. Fill and bleed the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding Cooling System Draining, Filling and Bleeding.