Preliminary Procedures

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the heater inlet hose pump to engine. Refer to Heater Inlet Hose Replacement .
3. Remove the heater inlet hose pump to heater core. Refer to Heater Inlet Hose Replacement .

1

Auxiliary Heater Coolant Pump Screw

Tighten
9 N·m (80 lb in)

2

Auxiliary Heater Coolant Pump

Tip
Disconnect electrical connection.