Water Pump: Service and Repair

Coolant Pump - 3.7L













Removal

1. Remove the air cleaner outlet pipe.

2. Loosen the 4 coolant pump pulley bolts.

3. Remove the accessory drive belt.

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 Service and Repair.

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. Install a new O-ring seal in the coolant pump and lubricate it with clean engine coolant.

2. Position a new gasket, press the coolant pump over the channel cover plate snout protruding from the engine front cover 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 Service and Repair.

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

7. Install the accessory drive belt.

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

9. Install the air cleaner outlet pipe.

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