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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1008 (Heating, Ventilation And Air Conditioning - Gas) >> Repair Instructions >> Heater Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the heater door (6).
    Fig 1: Exploded View Of Heater/Vent Module
    GM668357Courtesy of GENERAL MOTORS CORP.
  2. Install the heater door cam assembly (5).
  3. Install the mode actuator cam assembly (4).
  4. Install the mode actuator (3).
  5. Install the heater/vent module halves.
    6. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Install the heater/vent module screws.

    Tighten:  Tighten the screws to 1.6 N.m (14 lb in).

  7. Install the heater/vent module. Refer toHeater/Vent Module Replacement .
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