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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 >> Defroster Door Replacement (Heat Only) >> 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. Install the defroster door (1).
    Fig 1: Exploded View Of Heater/Vent Module
    GM668357Courtesy of GENERAL MOTORS CORP.
  2. Install the defroster door lever (2).
  3. Install the mode actuator cam assembly (4).
  4. Install the mode actuator (3).
  5. Install the mode actuator screws.
    6. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Install the mode actuator screws.

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

  7. Install the heater/vent module halves.
  8. Install the screws to the heater/vent module.

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

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