GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 791046  Size: SH
  1. Exhaust all air pressure from the system.
  2. Remove the screws from the transmission shift sheath.
  3. Slide the sheath down the shift lever.
  4. If equipped with the 9 speed transmission, disconnect the following tubes:
  5. • Red tube (1) from the S port
    • Black tube (2) from the P port

    Object Number: 791047  Size: SH
  6. If equipped with the 10 speed transmission, disconnect the following tubes:
  7. • Blue tube (1) from the SP port
    • Black tube (2) from the P port
    • Red tube (3) from the S port
    • Green tube (4) from the H port to L port
  8. Perform the following steps in order to remove the air shift control lever:
  9. 6.1. Loosen the shift knob lock nut.
    6.2. Unscrew the shift knob.
  10. Remove the shift lever sheath.
  11. Remove the transmission control lever. Refer to Control Lever and/or Boot Replacement .
  12. Raise and suitably support the vehicle, if required. Refer to Lifting and Jacking the Vehicle .

  13. Object Number: 791342  Size: SH
  14. If equipped with the 9 speed transmission, disconnect the following tubes:
  15. • Red tube (1) from the S port
    • Black tube (2) from the P port

    Object Number: 791343  Size: SH
  16. If equipped with the 10 speed transmission, disconnect the following tubes:
  17. • Green tube (1) from the H port to L port
    • Black tube (2) from the P port
    • Blue tube (3) from the SP port
    • Red tube (4) from the S port
  18. Remove the air shift harness from the vehicle.

Installation Procedure


    Object Number: 791343  Size: SH
  1. Install the air shift harness to the vehicle.
  2. If equipped with the 10 speed transmission, connect the following tubes:
  3. • Green tube (1) to the H port to L port
    • Black tube (2) to the P port
    • Blue tube (3) to the SP port
    • Red tube (4) to the S port

    Object Number: 791342  Size: SH
  4. If equipped with the 9 speed transmission, connect the following tubes:
  5. • Red tube (1) to the S port
    • Black tube (2) to the P port
  6. Lower the vehicle, if required.

  7. Object Number: 791333  Size: SH
  8. Install the transmission control lever. Refer to Control Lever and/or Boot Replacement .

  9. Object Number: 791047  Size: SH
  10. Install the shift lever sheath.
  11. Notice: Refer to Fastener Notice in the Preface section.

  12. Perform the following steps in order to install the air shift control lever:
  13. 7.1. Screw the shift knob on completely, then back off until the knob or selector button points to the driver side of the cab.
    7.2. Tighten the shift knob lock nut against the shift knob.

    Tighten
    Tighten the shift knob lock nut to 25 N·m (18 lb ft).

  14. If equipped with the 10 speed transmission, connect the following tubes:
  15. • Blue tube (1) to the SP port
    • Black tube (2) to the P port
    • Red tube (3) to the S port
    • Green tube (4) to the H port to L port

    Object Number: 791046  Size: SH
  16. If equipped with the 9 speed transmission, connect the following tubes:
  17. • Red tube (1) to the S port
    • Black tube (2) to the P port
  18. Slide the sheath up the shift lever.
  19. Install the screws to the transmission shift sheath.
  20. Tighten
    Tighten the control lever sheath screws to 5 N·m (44 lb in).

  21. Pressurize the system.
  22. Operate the shift control valve to check for leaks.