C 3500 HD Truck 2WD V8-8.1L VIN G (2002)
Engine Block Heater: Service and Repair
Coolant Heater Replacement
Coolant Heater Replacement
Removal Procedure
1. Drain the cooling system.
2. Disconnect the engine block heater cord from the block heater.
3. Remove the engine block heater from the engine block.
Installation Procedure
1. Apply thread sealant GM P/N 12346004 or equivalent to the threads of the engine block heater.
Notice: Refer to Fastener Notice in Service Precautions.
