Coolant Heater Replacement LA3, LY9, K05

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 in Engine Controls-2.6L and 3.2L.
3. Disconnect the coolant heater power supply cord from the coolant heater.




Important: A residual amount of coolant will drain from the engine block.

4. Remove the coolant heater and seal from the engine block.

1. Install the seal to the coolant heater.

Notice: Refer to Component Fastener Tightening Notice in the Preface section.

2. Install the coolant heater into the engine block.

Tighten
Tighten the coolant heater to 60 N·m (44 lb ft).

3. Connect the coolant heater power supply cord to the coolant heater.
4. Install the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 in Engine Controls-2.6L and 3.2L.
5. Fill the cooling system. Refer to Cooling System Draining and Filling .

Coolant Heater Replacement LA3, LY9, KA3

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 in Engine Controls-2.6L and 3.2L.
3. Disconnect the coolant heater power supply cord from the coolant heater.




Important: A residual amount of coolant will drain from the engine block.

4. Remove the coolant heater and seal from the engine block.

1. Install the seal to the coolant heater.

Notice: Refer to Component Fastener Tightening Notice in the Preface section.

2. Install the coolant heater into the engine block.

Tighten
Tighten the coolant heater to 60 N·m (44 lb ft).

3. Connect the coolant heater power supply cord to the coolant heater.
4. Install the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 in Engine Controls-2.6L and 3.2L.
5. Fill the cooling system. Refer to Cooling System Draining and Filling .