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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 741 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Mode Linkage Adjustment >> Adjustment Procedure

Adjustment Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
  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.
    Fig 1: Removing Knee Bolster
    G01482531Courtesy of GENERAL MOTORS CORP.
  5. Locate to mode door linkage.
    Fig 2: Locating Mode Door Linkage
    G01482532Courtesy 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).
    Fig 3: Disconnecting Push Rod From Retainer Clip
    G01482533Courtesy of GENERAL MOTORS CORP.
  8. Align the third thread (1) on the push rod with the end of the retainer clip.
    Fig 4: Aligning Push Rod Thread With Retainer Clip
    G01482534Courtesy of GENERAL MOTORS CORP.
  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.

    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.
    Fig 5: Aligning Push Rod Thread Length
    G01482535Courtesy of GENERAL MOTORS CORP.
  14. Close the retainer clip and test again for air bleed.
  15. Repeat adjustment procedure if necessary.

    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.
    Fig 6: Decreasing Tip Of Push Rod Thread Length
    G01482536Courtesy 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.
    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.
    Fig 7: Installing Knee Bolster
    G01482537Courtesy of GENERAL MOTORS CORP.
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