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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MQC) - Repair Instructions - On Vehicle (1 Of 2) >> Repair Instructions - On Vehicle >> Transmission Replacement (L84, L87, 2WD without F47) >> Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  2. Front Wheelhouse Liner - Left Side and Right Side - Remove [2x] - Front Wheelhouse Liner Replacement
  3. GM5508824Courtesy of GENERAL MOTORS COMPANY

    Exhaust Heat Shield Bolt (1) - Remove

  4. Exhaust Front Pipe Heat Shield (2) - Remove
  5. GM5508826Courtesy of GENERAL MOTORS COMPANY

    Exhaust Heat Shield Bolt (1) - Remove

  6. Exhaust Front Pipe Heat Shield (2) - Remove
  7. GM5525401Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The heated oxygen sensor in-line connector and louvered end MUST be kept clear of all grease, dirt, and other contaminants. Do NOT use cleaning solvents of any type. Do NOT drop or roughly handle the sensor.
    • The heated oxygen sensor MAY be difficult to remove when the engine temperature is less than 48°C (120°F).

    Disconnect the heated oxygen sensor electrical connector. (1)

  8. Using a suitable tool, remove the heated oxygen sensor bank 1 sensor 1 (1).
  9. GM5523087Courtesy of GENERAL MOTORS COMPANY

    Disconnect the heated oxygen sensor electrical connector. (1)

  10. Using a suitable tool, remove the heated oxygen sensor bank 1 sensor 2 (1).
  11. GM5568855Courtesy of GENERAL MOTORS COMPANY

    Disconnect the heated oxygen sensor electrical connector. (1)

  12. GM5523023Courtesy of GENERAL MOTORS COMPANY

    Disconnect the heated oxygen sensor electrical connector. (1)

  13. GM5001054Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Loosen

  14. Exhaust Muffler (2) @ Three-Way Catalytic Converter (3) - Separate
  15. GM5584496Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut - Left Side (1) - Remove [3x]

  16. GM5584486Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut - Right Side (1) - Remove [3x]

  17. GM5544191Courtesy of GENERAL MOTORS COMPANY

    Mark the relationship of the propeller shaft (2) to the rear wheel drive shaft flange.

  18. Rear Propeller Shaft Bolt (1) - Remove [4x]
  19. GM5544194Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  20. GM5674935Courtesy of GENERAL MOTORS COMPANY

    Remove the 4 wiring harness retainers (3), then reposition the wiring harness as necessary.

  21. Support the transmission with a suitable jack.
  22. GM4974116Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Nut (1) - Remove

  23. GM4974118Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember Nut (1) - Remove [4x]

  24. Transmission Support Crossmember Bolt (2) - Remove [4x]
  25. GM4974120Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Remove

  26. GM5001076Courtesy of GENERAL MOTORS COMPANY

    Three-Way Catalytic Converter (1) - Remove

  27. GM5001105Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Seal - Left Side (1) - Remove and DISCARD

  28. GM5001113Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Seal - Right Side (1) - Remove and DISCARD

  29. GM5585541Courtesy of GENERAL MOTORS COMPANY

    Transmission Converter Cover Bolt (1) - Remove

  30. Transmission Converter Cover - Left Side (2) - Remove
  31. GM5512320Courtesy of GENERAL MOTORS COMPANY

    {with RC1} Front Bumper Fascia Skid Plate Bolt (1) - Remove [4x]

    1. Underbody Splash Shield Bolt (2) - Remove [4x]
    2. GM5512311Courtesy of GENERAL MOTORS COMPANY

      Underbody Splash Shield (1) - Remove

    3. GM5512332Courtesy of GENERAL MOTORS COMPANY

      Underbody Skid Shield Bolt (2) - Remove [2x]

    4. Underbody Skid Shield (3) - Remove
  32. GM5540945Courtesy of GENERAL MOTORS COMPANY

    {with WTX} Front Bumper Fascia Air Deflector Bolt (1) - Remove [10x]

    1. Front Bumper Fascia Extension Bolt (2) - Remove [8x]
    2. GM5540946Courtesy of GENERAL MOTORS COMPANY

      Pull the front bumper fascia extension (1) rearward and down from the front bumper fascia.

    3. GM5591893Courtesy of GENERAL MOTORS COMPANY

      Front Bumper Fascia Extension Bolt (2) - Remove [4x]

    4. Front Bumper Fascia Extension Bolt (3) @ Underbody Skid Shield - Remove [2x]
    5. Front Bumper Fascia Extension (4) - Remove
    6. GM5513633Courtesy of GENERAL MOTORS COMPANY

      Underbody Skid Shield Bolt (1) - Remove [2x]

    7. Underbody Skid Shield (2) - Remove
  33. GM5569719Courtesy of GENERAL MOTORS COMPANY

    Starter Heat Shield Bolt (1) - Remove [2x]

  34. GM5569721Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Catalytic converter removed for graphic clarity.

    Starter Heat Shield Bolt (1) - Remove

  35. Starter Heat Shield (2) - Remove
  36. GM5569769Courtesy of GENERAL MOTORS COMPANY

    Battery Negative Cable Ground Bolt (1) - Remove

  37. Starter Solenoid Cable (2) - Reposition away
  38. GM5569758Courtesy of GENERAL MOTORS COMPANY

    Starter Bolt (1) - Remove [2x]

  39. Reposition the starter (2) to access the electrical connections.
  40. GM5569840Courtesy of GENERAL MOTORS COMPANY

    Protective Sleeve (4) - Reposition

  41. Starter Solenoid Cable Nut (2) - Remove
  42. Starter Solenoid Cable (1) - Remove
  43. Electrical Connector (3) - Disconnect
  44. GM5569910Courtesy of GENERAL MOTORS COMPANY

    Starter (1) - Remove

  45. Place a drain pan under the vehicle.
  46. GM5569829Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Pan Bolt (1) - Remove [16x]

  47. Automatic Transmission Fluid Pan (2) - Remove
  48. Automatic Transmission Fluid Pan Gasket (3) - Remove
  49. Allow the transmission to drain.
  50. GM5569829Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Pan Gasket (3) - Install

  51. Automatic Transmission Fluid Pan (2) - Install
  52. Automatic Transmission Fluid Pan Bolt (1) - Install and hand tighten [16x]
  53. Remove the drain pan.
  54. GM5585543Courtesy of GENERAL MOTORS COMPANY

    Transmission Converter Cover Bolt (1) - Remove

  55. Transmission Converter Cover - Right Side (2) - Remove
  56. GM5608206Courtesy of GENERAL MOTORS COMPANY

    Repeat the following steps for all transmission torque converter bolts (1) :

    1. Rotate the crankshaft balancer center bolt clockwise ONLY, to align the transmission torque converter bolt with the starter opening.
    2. Transmission Torque Converter Bolt (1) - Remove [6x]
  57. Lower the transmission enough to gain access to the transmission vent hose clip bracket.
  58. GM5600725Courtesy of GENERAL MOTORS COMPANY

    Remove the engine wiring harness retainer (1) and reposition the engine wiring harness (2) as necessary.

  59. GM5600801Courtesy of GENERAL MOTORS COMPANY

    Remove the transmission vent hose retainer (1) then reposition the transmission vent hose (2) as necessary.

  60. GM5600854Courtesy of GENERAL MOTORS COMPANY

    Remove the transmission vent hose clip bracket nut (1).

  61. Remove the transmission vent hose clip bracket (2).
  62. GM5608309Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Connector Bolt (1) - Remove

  63. Transmission Fluid Cooler Inlet and Outlet Pipe (2) @ Transmission - Remove
  64. Transmission Fluid Cooler Seal (3) - Remove and DISCARD
  65. Cap the fittings and plug the holes when removing the transmission fluid cooler pipes.
  66. Disconnect the wiring harness retainers.
  67. GM4960510Courtesy of GENERAL MOTORS COMPANY

    Transmission Heat Shield Bolt (2) - Remove

  68. Transmission Heat Shield Bolt (1) - Remove [2x]
  69. Transmission Heat Shield (3) - Remove
  70. GM5608316Courtesy of GENERAL MOTORS COMPANY

    Disconnect all wiring harness retainers (2) and electrical connectors (1) from the transmission, then position the wiring harness out of the way.

  71. Cap the opening to prevent contamination.
  72. GM5021402Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed and Return Front Hose Bracket Nut (1) - Remove

  73. Fuel Feed and Return Front Hose Bracket Bolt (2) - Remove
  74. Reposition the fuel feed and evaporative emission and return hose (3) as necessary.
  75. GM5608334Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) Remove [5x]

  76. GM5608354Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) Remove

  77. Transmission Bolt (2) Remove [2x]
  78. Pull the transmission (3) straight back.
  79. GM5608009Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    The torque converter must be held to the torque converter housing by a retaining device such as shipping brackets. Without the retaining device, the torque converter may slide forward, disengaging the oil pump, or may fall completely out of the transmission causing personal injury and/or property damage.

    Install the DT-21366  Converter Holding Strap (1) onto the transmission bell housing to retain the torque converter.

  80. GM5608370Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission (1) - Remove

  81. GM5765228Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bolt (1) - Remove [2x]

  82. Transmission Mount (2) - Remove