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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1151 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Defroster Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Defroster Door
    GM860406Courtesy of GENERAL MOTORS CORP.
  1. Install the defroster door.
    2. Fig 2: View Of Air Distribution Cover Screws
    GM860404Courtesy of GENERAL MOTORS CORP.
  2. Install the air distribution cover.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the air distribution cover screws.

    Tighten:  Tighten the screws to 0.9 N.m (8 lb in).

    4. IMPORTANT: Align the slot on the defroster door lever with the pin on the mode door main lever.
    Fig 3: Locating Defroster Door Spring & Defroster Door Lever
    GM860412Courtesy of GENERAL MOTORS CORP.
  4. Connect the defroster door lever (2) and the defroster door spring (1) to the defroster door.
  5. Connect the defroster door spring (1) to the air distribution cover.
    6. IMPORTANT: Align the slot on the secondary defroster door lever with the pin on the mode door main lever.
    Fig 4: Identifying Secondary Defroster Door Lever
    GM860400Courtesy of GENERAL MOTORS CORP.
  6. Connect the secondary defroster door lever to the secondary defroster door.
    7. Fig 5: View Of HVAC Module Mounting Brackets
    GM828096Courtesy of GENERAL MOTORS CORP.
  7. Install the right HVAC module mounting bracket to the HVAC module assembly.
  8. Install the right HVAC module mounting bracket screws.

    Tighten:  Tighten the screws to 1.8 N.m (16 lb in).

  9. Install the left HVAC module mounting bracket to the HVAC module assembly.
  10. Install the left HVAC module mounting bracket screws.

    Tighten:  Tighten the screws to 1.8 N.m (16 lb in).

  11. Install the I/P carrier. Refer to Instrument Panel (I/P) Carrier Replacement in Instrument Panel, Gages and Console.
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