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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MHU MQC) - Repair Instructions - On Vehicle (1 Of 2) >> Repair Instructions - On Vehicle >> Transmission Vent Hose Replacement (LM2 & RWL & F47) >> Removal Procedure

Removal Procedure

  1. Front Wheelhouse Liner- Right Side - Remove - Front Wheelhouse Liner Replacement
  2. GM5721090Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket Nut (1) - Remove [2x]

  3. Wiring Harness Retainer (2) - Remove
  4. Raise the vehicle.
  5. GM5149436Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, remove the position 2 nitrogen oxides sensor (1) from the nitrogen oxides catalytic converter.

  6. GM5150652Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, remove the position 3 nitrogen oxides sensor (1) from the nitrogen oxides catalytic converter.

  7. GM5151789Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, remove the exhaust particulate sensor (1) from the nitrogen oxides catalytic converter.

  8. GM5341429Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Loosen

  9. GM5340362Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Remove [2x]

  10. GM5721112Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket (1) - Remove

  11. GM5341378Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Remove [2x]

  12. GM5184846Courtesy of GENERAL MOTORS COMPANY

    Nitrogen Oxides Catalytic Converter (1) - Remove

  13. Exhaust System Front Gasket (2) - Remove and DISCARD
  14. Support the transmission with a suitable jack.
  15. GM5624947Courtesy of GENERAL MOTORS COMPANY

    Remove the wiring harness (2) with automatic level control air supply line (3) from the retainers (1) and reposition as necessary.

  16. GM5611960Courtesy of GENERAL MOTORS COMPANY

    Remove the chassis wire harness clip (1) from the automatic level control air supply reservoir.

  17. GM5611961Courtesy of GENERAL MOTORS COMPANY

    Remove the 3 automatic level control air compressor bolts (1).

  18. Reposition and support the automatic level control air supply reservoir (2) out of the way of the transmission support crossmember.
  19. GM5587388Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Nut (1) - Remove

  20. Transmission Support Crossmember Nut (2) - Remove [4x]
  21. Transmission Support Crossmember Bolt (3) - Remove [4x]
  22. GM5587449Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Remove

  23. Lower the transmission enough to gain access to the transmission vent hose.
  24. GM5135431Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 transmission vent hose retainers (1).

  25. Remove the transmission vent hose. (2)