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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 (2 Of 2) >> Repair Instructions - On Vehicle >> Transmission Replacement (LM2, 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. Oil Filler Cap - Remove
  3. GM5171779Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Bolt (1) - Remove

  4. Intake Manifold Cover (2) - Remove
  5. Install the oil filler cap after removal of the intake manifold cover to prevent debris from falling into the engine.
  6. GM5541781Courtesy of GENERAL MOTORS COMPANY

    Hood Latch Actuator Bolt (1) - Remove [2x]

  7. Hood Secondary Latch Release Handle (2) - Remove
  8. GM5617832Courtesy of GENERAL MOTORS COMPANY

    Intake Air Baffle Retainer (1) - Remove [9x]

  9. Intake Air Splash Shield (2) - Remove
  10. GM5572432Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front End Sheet Metal Diagonal Brace Bolt - Left Side and Right Side (1) - Remove [4x]

  11. Front End Sheet Metal Diagonal Brace - Left Side and Right Side (2) - Remove [2x]
  12. Front Wheelhouse Liner - Right Side - Remove - Front Wheelhouse Liner Replacement
  13. GM5340362Courtesy of GENERAL MOTORS COMPANY

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

  14. GM5634664Courtesy of GENERAL MOTORS COMPANY

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

  15. Wiring Harness Retainer (2) @ Catalytic Converter Brace Bracket (3) - Remove
  16. Catalytic Converter Brace Bracket (3) - Remove
  17. GM5153130Courtesy of GENERAL MOTORS COMPANY

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

  18. GM5149436Courtesy of GENERAL MOTORS COMPANY

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

  19. GM5150652Courtesy of GENERAL MOTORS COMPANY

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

  20. GM5151789Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, remove the exhaust particulate matter sensor (1).

  21. GM5341429Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Loosen

  22. GM5341378Courtesy of GENERAL MOTORS COMPANY

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

  23. GM5184846Courtesy of GENERAL MOTORS COMPANY

    Nitrogen Oxides Catalytic Converter (1) - Remove

  24. Exhaust System Front Gasket (2) - Remove and DISCARD
  25. GM5479727Courtesy of GENERAL MOTORS COMPANY

    Chassis Front Wiring Harness Bracket Bolt - Rear (1) - Remove

  26. Chassis Wiring Harness Front Bracket Retainer (2) - Remove [2x]
  27. Chassis Front Wiring Harness Bracket Bolt - Front (3) - Remove
  28. Remove the positive battery cable retainers from the chassis wiring harness front bracket.
  29. Chassis Wiring Harness (4) - Reposition
  30. GM5674667Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Components removed for graphic clarity.

    Starter Heat Shield Bolt (3) - Remove [2x]

  31. Disengage the starter heat shield (2) from the retainer (1).
  32. GM5608813Courtesy of GENERAL MOTORS COMPANY

    Starter Heat Shield (1) - Remove

  33. GM5152987Courtesy of GENERAL MOTORS COMPANY

    Starter Solenoid Cable Nut (1) - Remove

  34. Wiring Harness Conduit Nut (2) - Remove
  35. Starter Solenoid Cable (3) - Remove
  36. GM5609862Courtesy of GENERAL MOTORS COMPANY

    Starter Bolt (1) - Remove [3x]

  37. Reposition the starter (2) to access the electrical connector.
  38. GM5153063Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  39. GM5387083Courtesy of GENERAL MOTORS COMPANY

    Remove the starter (1) through the wheel well.

  40. Place a drain pan under the vehicle.
  41. GM5569829Courtesy of GENERAL MOTORS COMPANY

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

  42. Automatic Transmission Fluid Pan (2) - Remove
  43. Automatic Transmission Fluid Pan Gasket (3) - Remove
  44. Allow the transmission to drain.
  45. GM5569829Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Pan Gasket (3) - Install

  46. Automatic Transmission Fluid Pan (2) - Install
  47. Automatic Transmission Fluid Pan Bolt (1) - Install and hand tighten [16x]
  48. Remove the drain pan.
  49. GM5591283Courtesy of GENERAL MOTORS COMPANY

    Mark the relationship of the propeller shaft to the differential drive pinion gear yoke.

  50. Rear Propeller Shaft Bolt (1) - Remove [4x]
  51. GM5591284Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  52. GM5185017Courtesy of GENERAL MOTORS COMPANY

    Disconnect the wiring harness retainers.

  53. Catalytic Converter Brace Bracket Bolt (1) - Remove [2x]
  54. Exhaust Front Bracket (2) - Remove
  55. GM4960510Courtesy of GENERAL MOTORS COMPANY

    Transmission Heat Shield Bolt (2) - Remove

  56. Transmission Heat Shield Bolt (1) - Remove [2x]
  57. Transmission Heat Shield (3) - Remove
  58. Disconnect the wiring harness retainers.
  59. GM5629592Courtesy of GENERAL MOTORS COMPANY

    Fuel Heater Inlet and Outlet Bolt (3) - Remove

  60. GM5629593Courtesy of GENERAL MOTORS COMPANY

    Fuel Heater Inlet and Outlet Nut (1) - Loosen

  61. Fuel Heater Inlet and Outlet Bolt (2) - Remove
  62. Reposition the fuel heater inlet and outlet hoses aside.
  63. GM5617646Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Nut (1) - Remove

  64. GM5627087Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Inlet and Outlet Pipe (1) - Reposition

  65. Transmission Fluid Cooler Pipe Seal (2) - Remove and DISCARD [2x]
  66. Cap the fittings and plug the holes when removing the transmission fluid cooler pipes.
  67. GM5644313Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Exchanger Bolt (1) - Remove [2x]

  68. Transmission Fluid Cooler Pipe Bolt (2) - Remove
  69. Automatic Transmission Fluid Cooling Exchanger Nut (3) - Remove
  70. Reposition the transmission fluid cooling exchanger with automatic transmission fluid cooler inlet and outlet pipes (4) away from the transmission as necessary and secure using a suitable strap or wire.
  71. Transmission Fluid Cooler Seal (5) - Remove and DISCARD
  72. Cap the fittings and plug the holes when removing the transmission fluid cooler pipes.
  73. GM5160907Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Retainer Clip (1) - Disengage

  74. 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

  75. 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. Remove wiring harness retainers as needed.
    6. Front Bumper Fascia Extension (4) - Remove
  76. GM5619156Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Engine Front Cover Bolt (1) - Remove

  77. Pull forward and upward on the engine front cover (2) to release the 5 retaining grommets from the ball studs.
  78. GM5877076Courtesy of GENERAL MOTORS COMPANY

    Remove the engine front cover (1) from the bottom of the vehicle.

  79. GM5675037Courtesy of GENERAL MOTORS COMPANY

    Using the EN-52579  Crankshaft Rotator (1), rotate the crankshaft balancer bolt clockwise ONLY, to align the transmission torque converter bolts with the starter opening.

  80. GM5137326Courtesy of GENERAL MOTORS COMPANY

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

    1. Using the EN-52579  Crankshaft Rotator, rotate the crankshaft balancer clockwise ONLY, to align the transmission torque converter bolt with the starter opening.
    2. Transmission Torque Converter Bolt (1) - Remove [6x]
  81. GM5675037Courtesy of GENERAL MOTORS COMPANY

    Remove the EN-52579  Crankshaft Rotator (1).

  82. GM5674935Courtesy of GENERAL MOTORS COMPANY

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

  83. Support the transmission with a suitable jack.
  84. GM5587388Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Nut (1) - Remove

  85. Transmission Support Crossmember Nut (2) - Remove [4x]
  86. Transmission Support Crossmember Bolt (3) - Remove [4x]
  87. GM5587449Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Remove

  88. Lower the transmission to gain access to the top and sides of the transmission.
  89. GM5644353Courtesy of GENERAL MOTORS COMPANY

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

  90. GM5617621Courtesy of GENERAL MOTORS COMPANY

    Retainer (2) - Remove

  91. GM5617142Courtesy of GENERAL MOTORS COMPANY

    Fuel Cooler Support Bracket Bolt (1) - Remove [2x]

  92. Fuel Cooler Bolt (2) - Remove
  93. Reposition the fuel lines with the fuel cooler (3).
  94. GM5135431Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 transmission vent hose retainers (1).

  95. Remove the transmission vent hose. (2)
  96. GM5646918Courtesy of GENERAL MOTORS COMPANY

    Disconnect the transmission wiring harness connector (1).

  97. Remove the 2 wiring harness retainers (2) and reposition the wiring harness as necessary.
  98. GM5739206Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Carefully remove the engine wiring harness channel from the transmission stud. If the engine wiring harness channel is damaged during removal, replace the engine wiring harness channel. Failure to replace the channel may lead to harness damage.

    Carefully remove the engine wiring harness channel (1) from the transmission stud and position aside.

  99. GM5136415Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) - Remove [4x]

  100. GM5136473Courtesy of GENERAL MOTORS COMPANY

    Remove the transmission stud (1) and the transmission bolt (2).

  101. GM5136887Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) - Remove [2x]

  102. GM5739769Courtesy of GENERAL MOTORS COMPANY

    Transmission Bolt (1) - Remove

  103. Pull the transmission straight back.
  104. 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.

  105. GM5647019Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission (1) - Remove

  106. GM5765228Courtesy of GENERAL MOTORS COMPANY

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

  107. Transmission Mount (2) - Remove