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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1666 (Heating, Ventilation And Air Conditioning) >> Repair Instruction >> Vent Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the vent door (1) to the HVAC module assembly.
    Fig 1: Installing Vent Door To HVAC Module Assembly
    G01568814Courtesy of GENERAL MOTORS CORP.
  2. Install the heater core cover.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the heater core cover screws.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

    Fig 2: Installing Heater Core Cover
    G01568815Courtesy of GENERAL MOTORS CORP.
  4. Install the heater core outlet cover.
  5. Install the screws to the heater core outlet cover.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

  6. Install the HVAC vacuum harness bracket.
  7. Install the screws to the HVAC vacuum harness bracket.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

  8. Connect the defroster/vent door link at the vent door on the left side of the HVAC module assembly.
    Fig 3: View Of Heater Core Outlet Cover
    G01568816Courtesy of GENERAL MOTORS CORP.
  9. Connect the rear floor air outlet duct to the heater core outlet cover.
  10. Install the rear floor air outlet duct (1) to the holes in the floor reinforcement.
    Fig 4: Installing Rear Floor Air Outlet Duct To Holes In Floor Reinforcement
    G01568817Courtesy of GENERAL MOTORS CORP.
  11. Install the floor carpet. Refer to CARPET REPLACEMENT -- FRONT in Interior Trim.
  12. Install the vacuum tank. Refer to VACUUM TANK REPLACEMENT in HVAC System - Manual.
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