Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Coolant Heater

Courtesy of GENERAL MOTORS CORP.

Remove any burrs, sealer, paint or other foreign material from the threads/sealing surface of the engine block and from the old coolant heater if the heater is to be reused.
If reusing the old coolant heater, apply thread sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent to the threads.
NOTE: Refer to COMPONENT FASTENER TIGHTENING NOTICE in Cautions and Notices.
Install the coolant heater to the engine block.
Tighten: Tighten the bolts to 50 N.m (37 lb ft).

Fig 2: View Of Coolant Heater & Heater Cord

Courtesy of GENERAL MOTORS CORP.

Connect the coolant heater cord (1) to the heater.
Fill cooling system. Refer to Draining and Filling Cooling System (Static Fill) .