Engine Block Heater: Service and Repair

Coolant Heater Cord Replacement (LH6, LMG, LY2 and LY5)

Removal Procedure




1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Remove the oil pan skid plate bolts and plate, if equipped.




3. Disconnect the coolant heater cord electrical connector.




4. Remove the coolant heater cord retainer (5) from the frame.
5. Remove the coolant heater cord clip (6) from the front brake front pipe.
6. Lower the vehicle.
7. Remove the coolant heater cord bolt (4) from the frame.
8. Remove the coolant heater cord clip (2) from the chassis harness.
9. Remove the coolant heater cord clip (1) from the front spring stud.
10. Remove the coolant heater cord from the vehicle.

Installation Procedure




1. Install the coolant heater cord to the vehicle.
2. Install the coolant heater cord clip (1) to the front spring stud.
3. Install the coolant heater cord clip (2) to the chassis harness.

Caution: Refer to Fastener Caution (Fastener Caution).

4. Position the coolant heater cord clip to the frame and install the coolant heater cord bolt (4).

Tighten the bolt to 8 Nm (71 lb in).

5. Raise the vehicle.
6. Install the coolant heater cord clip (6) to the front brake front pipe.
7. Position the coolant heater cord clip to the frame and install the coolant heater cord retainer (5).




8. Connect the coolant heater cord electrical connector.




9. Position and install the oil pan skid plate and bolts, if equipped.

Tighten the bolts to 20 Nm (15 lb ft).

10. Lower the vehicle.