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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1245 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Replacement (3.1 L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply GM P/N 12346004

    (Canadian P/N 10953480) or the equivalent to the following:

    • The engine block heater seal
    • The cleaned surface of the engine block heater hole
  2. Position the engine coolant heater element at the 3 o'clock position (2).
  3. Install the engine coolant heater.

    Final installed position between 2 o'clock (1) and 4 o'clock (3) is acceptable.

    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the engine coolant heater bolt.

    Tighten 

    Tighten the bolt to 2 N.m (18 lb in).

    Fig 1: Positioning Engine Coolant Heater Element At 3 O'Clock Position
    G02084104Courtesy of GENERAL MOTORS CORP.
  5. Connect the engine coolant heater cord to the engine coolant heater.
  6. Lower the vehicle.
  7. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM  .