Engine Block Heater: Service and Repair

Block Heater





NOTE: V6 engine shown, V8 engine similar.










Removal and Installation

1. Drain the engine cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding Cooling System Draining, Filling and Bleeding.

2. Disconnect the block heater electrical connector and position aside.

3. NOTE: Do not loosen the block heater retaining screw more than necessary for removal.

Loosen the block heater retaining screw and remove the block heater.

- To install, tighten to 4 Nm (35 lb-in).

4. To install, reverse the removal procedure.
- Lubricate the block heater seal and the cylinder block hole with clean engine coolant to ease installation.

- Make sure the block heater electrical connector is routed and secured away from rotating or hot components or damage to the cable can occur.

5. Fill and bleed the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding Cooling System Draining, Filling and Bleeding.