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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1233 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Mode Door Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  2. Remove the instrument panel (I/P) trim pad. Refer to TRIM PAD REPLACEMENT - INSTRUMENT PANEL (I/P) .
  3. Remove the passenger side SIR inflator module. Refer to REMOVAL & INSTALLATION (PASSENGER-SIDE) .
  4. Remove the screws from the right and left side air distribution ducts.
  5. Remove the air distribution ducts.
    Fig 1: Removing Air Distribution Ducts
    G01482177Courtesy of GENERAL MOTORS CORP.
  6. Unclip the fuse block and position aside.
  7. Remove the 2 screws below the fuse block that hold the main wire harness connector to the cross car beam.
  8. Remove the brake pedal. Refer to BRAKE PEDAL ASSEMBLY .
  9. Disconnect any ground wires, as necessary.
  10. Remove the nuts and bolts from the steering column support bracket.
  11. Remove the steering column support bracket from the cross vehicle beam.
    Fig 2: Identifying Fuse Block
    G01482178Courtesy of GENERAL MOTORS CORP.
  12. Remove the retaining bolts and position the BCM bracket aside.
  13. Release the wiring harness retaining clips from the cross vehicle beam and position the I/P wiring harness out of the way.
    Fig 3: Removing BCM Bracket Retaining Bolts
    G01482179Courtesy of GENERAL MOTORS CORP.
  14. Remove the bolts from the center support bracket of the HVAC module.
  15. Remove the center support bracket of the HVAC module.
    Fig 4: Removing Bolts From Center Support Bracket Of HVAC Module
    G01482180Courtesy of GENERAL MOTORS CORP.
  16. Remove the retaining bolts from the upper support brackets of the HVAC module.
    Fig 5: Removing Retaining Bolts From Upper Support Brackets Of HVAC Module
    G01482181Courtesy of GENERAL MOTORS CORP.
  17. Remove the bolts which secure the left cross vehicle beam to the hinge pillar.
    Fig 6: Removing Left Cross Vehicle Beam Bolts
    G01482182Courtesy of GENERAL MOTORS CORP.
  18. Remove the bolts which secure the right cross vehicle beam to the hinge pillar.
    Fig 7: Removing Right Cross Vehicle Beam Bolts
    G01482183Courtesy of GENERAL MOTORS CORP.
  19. Remove the bolt (1) from the cross vehicle beam.
  20. Remove the cross vehicle beam from the vehicle.
    Fig 8: Removing Bolt From Cross Vehicle Beam
    G01482184Courtesy of GENERAL MOTORS CORP.
  21. Disconnect the vacuum lines from the mode actuator.
  22. Lift the lock tab up (1) to remove the actuator.
  23. Remove the mode actuator off the slides of the HVAC module assembly.
  24. Disconnect the actuator pushrod from the mode door lever and remove the actuator.
    Fig 9: Identifying Lock Tab
    G01482185Courtesy of GENERAL MOTORS CORP.
  25. Remove the retaining screws (1) from the air distribution case cover.
  26. Remove the air distribution case cover (2).
    Fig 10: Removing Air Distribution Case Cover & Retaining Screws
    G01482186Courtesy of GENERAL MOTORS CORP.
  27. Remove the mode door (2).
Fig 11: Removing Mode Door
G01482187Courtesy of GENERAL MOTORS CORP.
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