C 2500 Yukon XL 2WD V8-8.1L VIN G (2002)
Engine Block Heater: Service and Repair
Coolant Heater Replacement
Coolant Heater Replacement (8.1. Engine)
Removal Procedure
1. Drain the cooling system. Refer to Draining and Filling Cooling System.
2. Disconnect the block heater cord from the block heater.
3. Remove the engine block heater.
Installation Procedure
1. Apply sealant GM P/N 12346004, Canadian P/N 10953480 or equivalent to the threads of the engine block heater.
Notice: Refer to Fastener Notice in Cautions and Notices.
