Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Apply GM P/N 12346004, (Canadian P/N 10953480) or equivalent to the following:
- Engine block heater seal
- Cleaned surface of the engine block heater hole
Install the coolant heater by pushing tight to the block.

Fig 1: Installing Coolant Heater (3.8L)
Courtesy of GENERAL MOTORS CORP.
Position the engine coolant heater element at the 9 o'clock position (2).
Final installed position between 10 o'clock (1) and 8 o'clock (3) is acceptable.

Fig 2: Aligning Engine Coolant Heater Position
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Tighten the coolant heater bolt until both locking wings draw tight against the inner wall of the engine block.
Tighten

Tighten the bolt to 2 N.m (17 lb in).
Connect the engine coolant heater cord to the engine coolant heater.
Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .