gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Coolant Heater|Page 2792 > < Crankshaft, Engine|Specifications
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Engine Block Heater: Service and Repair
Coolant Heater

Coolant Heater Replacement (8.1L)

Removal Procedure

1. Drain the 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.

Coolant Heater|Page 2792 > < Crankshaft, Engine|Specifications