Coolant Heater Replacement 2.2L (L61)

1. Disconnect the coolant heater cord (1).



2. Remove the coolant heater bolt.
3. Remove the coolant heater.

1. Install the coolant heater.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the coolant heater bolt.

Tighten
Tighten the bolt to 10 N·m (89 lb in).




3. Connect the coolant heater cord (1).

Coolant Heater Replacement 3.5L (L66)

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Disconnect the coolant heater power supply cord from the coolant heater.




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

3. Remove the coolant heater and washer from the engine block.

1. Install the washer 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. Fill the cooling system. Refer to Cooling System Draining and Filling .