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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 >> Removal Procedure

Removal 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. Remove the vacuum tank. Refer to VACUUM TANK REPLACEMENT in HVAC System - Manual.
  2. Remove the floor carpet. Refer to CARPET REPLACEMENT -- FRONT in Interior Trim.
  3. Remove the rear floor air outlet duct (1) from the holes in the floor reinforcement.
    Fig 1: Removing Rear Floor Air Outlet Duct From Holes In Floor Reinforcement
    G01568810Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the rear floor air outlet duct from the heater core outlet cover.
  5. Remove the bolts from the vacuum harness bracket and position bracket aside.
  6. Remove the heater outlet cover screws.
  7. Remove the heater outlet cover.
  8. Disconnect the defroster/vent door link at the vent door on the left side of the HVAC module assembly.
    Fig 2: View Of Heater Core Outlet Cover
    G01568811Courtesy of GENERAL MOTORS CORP.
  9. Remove the heater core cover screws.
  10. Remove the heater core cover.
    Fig 3: Removing Heater Core Cover
    G01568812Courtesy of GENERAL MOTORS CORP.
  11. Remove the vent door (1) from the HVAC module assembly.
    Fig 4: Removing Vent Door From HVAC Module Assembly
    G01568813Courtesy of GENERAL MOTORS CORP.
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