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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 >> Mode Door Replacement >> Removal Procedure

Removal 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.
  1. Set the HVAC controls in the vent setting to close the defroster door.
  2. Remove the I/P carrier. Refer to Instrument Panel (I/P) Carrier Replacement in Instrument Panel, Gages and Console.
    3. IMPORTANT: Count the number of threads showing from the tip of the mode actuator push rod to the end of the retainer clip.
    Fig 1: Identifying Push Rod Retainer Clip
    GM828359Courtesy of GENERAL MOTORS CORP.
  3. Open the mode actuator push rod retainer clip (1) with a small flat- bladed screwdriver.
  4. Disconnect the mode actuator push rod (2) from the retainer clip (1).
    5. Fig 2: View Of HVAC Module Mounting Brackets
    GM828096Courtesy of GENERAL MOTORS CORP.
  5. Remove the left HVAC module mounting bracket from the HVAC module assembly.
  6. Remove the right HVAC module mounting bracket from the HVAC module assembly.
    7. Fig 3: Identifying Secondary Defroster Door Lever
    GM860400Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the secondary defroster door lever from the secondary defroster door.
    8. Fig 4: Locating Defroster Door Spring & Defroster Door Lever
    GM860412Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the defroster door spring (1) from the air distribution cover.
    9. Fig 5: View Of Air Distribution Cover Screws
    GM860404Courtesy of GENERAL MOTORS CORP.
  9. Remove the air distribution cover screws.
  10. Remove the air distribution cover.
    11. Fig 6: View Of Mode Door In The HVAC Module Assembly
    GM860442Courtesy of GENERAL MOTORS CORP.
  11. Remove the mode door from the HVAC module assembly.
  12. Disconnect and remove the left hand and right hand mode door levers from the mode door.
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