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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 624 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Mode Linkage Adjustment >> Adjustment Procedure

Adjustment 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: View Of Knee Bolster Assembly
    GM318206Courtesy of GENERAL MOTORS CORP.
  1. Remove the left insulator panel. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages and Console.
  2. Remove the knee bolster screws.
  3. Pull on the knee bolster to release the upper retainers.
  4. Remove the knee bolster.
    5. Fig 2: Locating Mode Door Linkage
    GM828385Courtesy of GENERAL MOTORS CORP.
  5. Locate to mode door linkage.
    6. Fig 3: Identifying Push Rod Retainer Clip
    GM828359Courtesy of GENERAL MOTORS CORP.
  6. Open the push rod retainer clip (1) with a small flat bladed screwdriver.
  7. Disconnect the push rod (2) from the retainer clip (1).
    8. Fig 4: Aligning Third Thread On Push Rod With The End Of The Retainer Clip
    GM828358Courtesy of GENERAL MOTORS CORP.
  8. Align the third thread (1) on the push rod with the end of the retainer clip.
  9. Close the push rod retainer clip.
  10. Inspect the air flow during the following conditions to verify proper operation:
    • No significant air bleed from the vent outlet during Heater mode.
    • Suitable air flow from the vent outlet during Bi-level mode.
    11. Fig 5: Lengthening Push Rod Alignment
    GM828354Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Perform the following if air bleed is felt from the vent outlet during Heater mode.
  11. Open the push rod retainer clip with a small flat bladed screwdriver.
  12. Disconnect the push rod from the retainer.
  13. Position the push rod so that the tip of the push rod will appear longer by one thread.
  14. Close the retainer clip and test again for air bleed.
  15. Repeat adjustment procedure if necessary.
    16. Fig 6: Shortening Push Rod Alignment
    GM828356Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Perform the following if there is no air flow from the vent outlet during Bi-level mode.
  16. Open the push rod retainer clip with a small flat bladed screwdriver.
  17. Disconnect the push rod from the retainer.
  18. Position the push rod so that the tip of the push rod will appear shorter by one thread.
  19. Close the retainer clip and test again for suitable air flow.
  20. Repeat adjustment procedure if necessary.
    21. Fig 7: View Of Knee Bolster Assembly
    GM318206Courtesy of GENERAL MOTORS CORP.
  21. Align the clips on the knee bolster with the corresponding slots on the I/P.
  22. Push in to secure the knee bolster to the I/P.
    23. NOTE: Refer to Fastener Notice in Cautions and Notices.
  23. Install the knee bolster screws.

    Tighten:  Tighten the screws to 2.5 N.m (22 lb in).

  24. Install the left insulator panel. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages and Console.
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