Engine Block Heater: Service and Repair

Block Heater





Removal and Installation

1. WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to Fire Suppression System.

With vehicle in NEUTRAL, position it on a hoist.
2. Drain the cooling system.
3. Disconnect the block heater electrical connector and position aside.

4. CAUTION: 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 2 Nm (18 inch lbs.).

5. WARNING: If equipped with fire suppression system, repower the system. For important safety warnings and procedures, refer to Fire Suppression System.

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

To install, reverse the removal procedure. If equipped with fire suppression system, repower the system.
6. Fill and bleed the cooling system.