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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 840 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Mode Door Replacement - Upper (Visteon) >> Installation Procedure

Installation Procedure

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  1. Install the mode door (4) to the door assembly (3).
  2. Install the door assembly (3) to the left air distribution housing (1).
  3. Install the lever to the defrost door (2).
  4. Install the lever to the upper mode door (4).
    Fig 1: Installing Door Assembly To Left Air Distribution Housing
    G01454400Courtesy of GENERAL MOTORS CORP.
  5. Install the air distribution housing halves.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  6. Install the screws to the air distribution housing (1).

    Tighten: 

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

    Fig 2: Installing Air Distribution Housing Halves
    G01454401Courtesy of GENERAL MOTORS CORP.
  7. Install the air distribution housing (1) to the HVAC module assembly (2).
  8. Install the screws to the air distribution housing (1).

    Tighten: 

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

  9. Install the wiring harness to the air distribution housing (1).
    Fig 3: Installing Air Distribution Housing To HVAC Module Assembly
    G01454402Courtesy of GENERAL MOTORS CORP.
  10. Connect the electrical connector (3) to the mode actuator (4).
  11. Install the mode actuator (4) to the HVAC module assembly (1).
  12. Install the screws to the mode actuator (4).

    Tighten: 

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

  13. Install the HVAC module assembly. Refer to HVAC MODULE ASSEMBLY REPLACEMENT  .
    Fig 4: Connecting Electrical Connector To Mode Actuator
    G01454403Courtesy of GENERAL MOTORS CORP.
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