Installation Procedure

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Fig 1: View Of Engine Block Coolant Heater

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE .

Apply sealant GM P/N 12346004, Canadian P/N 10953480 or equivalent to the threads of the engine block heater.
Install the engine block heater into the block.
Tighten: Tighten the engine block heater to 60 N.m (40 lb ft).

Fig 2: View of Block Heater

Courtesy of GENERAL MOTORS CORP.

NOTE: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine compartment securing with tie straps as necessary to prevent damage.

Connect the block heater cord to the block heater.
Fill the cooling system. Refer to Draining and Filling Cooling System .