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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 910 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Mode Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the mode door (1) to the module.
  2. Install the air temperature door to the module.
  3. Install the actuator rod to the defrost door.
  4. Install the actuator rod retaining clip.
  5. Install the defrost actuator to the module.
  6. Connect the defrost actuator vacuum harness.
  7. Install the air temperature actuator to the module.
    Fig 1: Installing Mode Door To Module
    G01466996Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  8. Install the air temperature actuator screws.

    Tighten 

    Tighten the screws to 1.9 N.m (17 Ib. in).

  9. Connect the air temperature actuator electrical connector.
  10. Install the screws in order to seal the HVAC module halves.

    Tighten 

    Tighten the screws to 4.5 N.m (40 Ib. in).

  11. Connect the actuator linkage to the door ends.
  12. Install the heater/vent module. Refer to HEATER/VENT MODULE REPLACEMENT  .
    Fig 2: Installing Screws In Order To Seal HVAC Module Halves
    G01466997Courtesy of GENERAL MOTORS CORP.
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