Coolant Heater Replacement

Coolant Heater Replacement (LA1)
Removal Procedure
1. Drain the engine cooling system.
2. Raise and support the vehicle. Refer to Vehicle Lifting.
3. Remove the right front wheel.
4. Remove the right engine splash shield.





5. Remove the engine coolant heater cord from the engine coolant heater.
6. Loosen the coolant heater bolt.





7. Remove the coolant heater.

Installation Procedure
1. Apply GM P/N United States 12346004, GM P/N Canada 10953480 or equivalent to the coolant heater seal and the coolant heater hole.





2. Ensure that the coolant heater element is horizontal and pointed toward the front of the engine. The 3 o'clock position (2) is DESIRED.The 2 o'clock position (1) and the 4 o'clock position (3) are acceptable.





3. Install the coolant heater.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the coolant heater bolt.
^ Tighten the bolt to 2 Nm (18 inch lbs.).





Notice: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine compartment securing with tie straps as necessary to prevent damage.

5. Install the engine coolant heater cord to the engine coolant heater.
6. Install the right engine splash shield.
7. Install the right front wheel.
8. Lower the vehicle.
9. Fill the engine cooling system.