Engine Block Heater: Service and Repair

Block Heater

Block Heater - 3.7L










Block Heater - 5.0L









Removal and Installation

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

2. Remove the block heater cover.

3. NOTICE: Make sure that the block heater wiring is routed and secured away from rotating or hot components, or the wiring may be damaged.

Disconnect the block heater electrical connector.


4. Remove the block heater.
- To install, tighten to 40 Nm (30 lb-ft).


5. To install, reverse the removal procedure.

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