Auxiliary Water Pump: Service and Repair

Auxiliary Coolant Flow Pump









Removal and Installation

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Drain the engine coolant. For additional information, refer to Engine Cooling - Hybrid Cooling System Draining, Filling and Bleeding.

3. Remove the LH lower engine splash shield.





4. Release the clamp and disconnect the auxiliary coolant pump-to-thermostat hose.

5. Release the clamp and disconnect the heater outlet hose.

6. Disconnect the auxiliary coolant flow pump electrical connector.

7. Remove the 2 auxiliary coolant flow pump bolts.
- To install, tighten to 4 Nm (35 lb-in).

8. Remove the auxiliary coolant flow pump and rubber bracket assembly.

9. NOTE: Lubricate the coolant hoses with plain water only if needed. Do not use soap or other detergents.

To install, reverse the removal procedure.

- Fill the engine cooling system. For additional information, refer to Engine Cooling - Hybrid Cooling System Draining, Filling and Bleeding.