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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 >> Automatic Transmission Removal and Installation (LM2, 2WD without F47) >> Installation Procedure

Installation Procedure

  1. Support the transmission with a suitable transmission jack.
  2. GM5647019Courtesy of GENERAL MOTORS COMPANY

    Raise the transmission (1) into place.

  3. GM5608009Courtesy of GENERAL MOTORS COMPANY

    Remove the DT-21366  Converter Holding Strap (1).

  4. GM5647019Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The torque converter must rotate freely by hand.

    Slide the transmission (1) straight onto the locating pins while lining up the marks on the flywheel and the torque converter.

  5. GM5136473Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install and tighten the transmission stud (1) and the transmission bolt (2). Fastener Specifications

  6. GM5136887Courtesy of GENERAL MOTORS COMPANY

    Install and tighten the 2 transmission studs (1). Fastener Specifications

  7. GM5136415Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) - Install and tighten [4x] - Fastener Specifications

  8. GM5739769Courtesy of GENERAL MOTORS COMPANY

    Transmission Bolt (1) - Install and tighten - Fastener Specifications

  9. GM5644353Courtesy of GENERAL MOTORS COMPANY

    Install the fuel lines with the fuel cooler (3) as necessary.

  10. Fuel Feed and Return Front Hose Bracket Nut (1) - Install and tighten - Fastener Specifications
  11. GM5617142Courtesy of GENERAL MOTORS COMPANY

    Fuel Cooler Bolt (2) - Install and tighten - Fastener Specifications

  12. Fuel Cooler Support Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  13. GM5617621Courtesy of GENERAL MOTORS COMPANY

    Retainer (2) - Install

  14. GM5135431Courtesy of GENERAL MOTORS COMPANY

    Install the transmission vent tube (2).

  15. Install the 2 transmission vent hose retainers (1).
  16. GM5587449Courtesy of GENERAL MOTORS COMPANY

    Raise the transmission into place.

  17. Transmission Support Crossmember (1) - Install
  18. GM5587388Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember Bolt (3) - Install [4x]

  19. Transmission Support Crossmember Nut (2) - Install and tighten [4x] - Fastener Specifications
  20. Transmission Mount Nut (1) - Install and tighten - Fastener Specifications
  21. Remove the support from the transmission.
  22. GM5674935Courtesy of GENERAL MOTORS COMPANY

    Install the wiring harness as necessary and connect the 4 wiring harness retainers (3).

  23. GM5739206Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Channel (1) - Install

  24. GM5646918Courtesy of GENERAL MOTORS COMPANY

    Connect the transmission wiring harness connector (1).

  25. Position the wiring harness then install the 2 wiring harness retainers (2).
  26. GM4960510Courtesy of GENERAL MOTORS COMPANY

    Transmission Heat Shield (3) - Install

  27. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  28. Transmission Heat Shield Bolt (2) - Install and tighten - Fastener Specifications
  29. Transmission Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
  30. Connect the wiring harness retainers.
  31. GM5185017Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Bracket (2) - Install

  32. Catalytic Converter Brace Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  33. Connect the wiring harness retainers.
  34. GM5675037Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    For proper alignment of all transmission torque converter bolts, install the first transmission torque converter bolt in the oval shaped hole.

    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.

  35. GM5137326Courtesy of GENERAL MOTORS COMPANY

    If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  36. Transmission Torque Converter Bolt (1) - Install and tighten [6x] - Fastener Specifications
  37. GM5675037Courtesy of GENERAL MOTORS COMPANY

    Remove the EN-2579  Crankshaft Rotator (1).

  38. GM5877076Courtesy of GENERAL MOTORS COMPANY

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

  39. GM5619156Courtesy of GENERAL MOTORS COMPANY

    Push down and rearward on the engine front cover (2) to engage the 5 retaining grommets to the ball studs.

  40. Engine Front Cover Bolt (1) - Install and tighten - Fastener Specifications
  41. GM5512311Courtesy of GENERAL MOTORS COMPANY

    {with RC1} Underbody Splash Shield (1) - Install

    1. GM5512320Courtesy of GENERAL MOTORS COMPANY

      Underbody Splash Shield Bolt (1) - Install and tighten [4x] - Fastener Specifications

    2. Underbody Splash Shield Bolt (2) - Install and tighten [4x] - Fastener Specifications
  42. GM5591893Courtesy of GENERAL MOTORS COMPANY

    {with WTX} Front Bumper Fascia Extension (4) - Install

    1. Install wiring harness retainers as needed.
    2. Front Bumper Fascia Extension Bolt (3) @ Underbody Skid Shield - Install and tighten [2x] - Fastener Specifications
    3. Front Bumper Fascia Extension Bolt (2) - Install and tighten [4x] - Fastener Specifications
    4. GM5540946Courtesy of GENERAL MOTORS COMPANY

      Front Bumper Fascia Extension (1) - Install

    5. GM5540945Courtesy of GENERAL MOTORS COMPANY

      Front Bumper Fascia Extension Bolt (2) - Install and tighten [8x] - Fastener Specifications

    6. Front Bumper Fascia Air Deflector Bolt (1) - Install and tighten [10x] - Fastener Specifications
  43. GM5160907Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Retainer Clip (1) - Engage

  44. Uncap the fittings and unplug the holes of the transmission.
  45. GM5627087Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Seal (2) - Install NEW [2x]

  46. Transmission Fluid Cooler Inlet and Outlet Pipe (1) - Install
  47. GM5617646Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Nut (1) - Install and tighten - Fastener Specifications

  48. GM5629593Courtesy of GENERAL MOTORS COMPANY

    Reposition the fuel heater inlet and outlet hoses as needed.

  49. CAUTION:

    Refer to Fastener Caution .

  50. Fuel Heater Inlet and Outlet Bolt (2) - Install and tighten - Fastener Specifications
  51. Fuel Heater Inlet and Outlet Nut (1) - Tighten - Fastener Specifications
  52. GM5629592Courtesy of GENERAL MOTORS COMPANY

    Fuel Heater Inlet and Outlet Bolt (3) - Install and tighten - Fastener Specifications

  53. Uncap the fittings and unplug the holes of the transmission.
  54. GM5644313Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Seal (5) - Install NEW

  55. Remove the suitable strap or wire then reposition the transmission fluid cooling exchanger with automatic transmission fluid cooler inlet and outlet pipes (4) onto the transmission as necessary.
  56. Automatic Transmission Fluid Cooling Exchanger Nut (3) - Install and tighten - Fastener Specifications
  57. Transmission Fluid Cooler Pipe Bolt (2) - Install and tighten - Fastener Specifications
  58. Automatic Transmission Fluid Cooling Exchanger Bolt (1) - Install and tighten [2x] - Fastener Specifications
  59. GM5591284Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Install

  60. GM5591283Courtesy of GENERAL MOTORS COMPANY

    Align the reference marks made between the differential drive pinion gear yoke and the propeller shaft.

  61. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  62. Install the 4 rear propeller shaft bolts (1) and tighten in a crisscross pattern. Fastener Specifications
  63. GM5387083Courtesy of GENERAL MOTORS COMPANY

    Install the starter (1) through the wheel well.

  64. GM5153063Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  65. GM5609862Courtesy of GENERAL MOTORS COMPANY

    Starter Bolt (1) - Install and tighten [3x] - Fastener Specifications

  66. GM5152987Courtesy of GENERAL MOTORS COMPANY

    Starter Solenoid Cable (3) - Install

  67. Starter Solenoid Cable Nut (1) - Install and tighten - Fastener Specifications
  68. Wiring Harness Conduit Nut (2) - Install and tighten - Fastener Specifications
  69. GM5608813Courtesy of GENERAL MOTORS COMPANY

    Starter Heat Shield (1) - Install

  70. GM5674667Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Components removed for graphic clarity.

    Engage the starter heat shield (2) into the retainer (1).

  71. Starter Heat Shield Bolt (3) - Install and tighten [2x] - Fastener Specifications
  72. GM5479727Courtesy of GENERAL MOTORS COMPANY

    Chassis Wiring Harness (4) - Install

  73. Install the positive battery cable retainers to the chassis wiring harness front bracket.
  74. Chassis Front Wiring Harness Bracket Bolt - Front (3) - Install and tighten - Fastener Specifications
  75. Chassis Front Wiring Harness Bracket Bolt - Rear (1) - Install and tighten - Fastener Specifications
  76. Chassis Wiring Harness Front Bracket Retainer (2) - Install [2x]
  77. GM5184846Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Front Gasket (2) - Install NEW

  78. Nitrogen Oxides Catalytic Converter (1) - Install
  79. GM5341378Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Install and tighten [2x] - Fastener Specifications

  80. GM5634664Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket (3) - Install

  81. Wiring Harness Retainer (2) @ Catalytic Converter Brace Bracket (3) - Install
  82. Catalytic Converter Brace Bracket Nut (1) - Install and tighten [2x] - Fastener Specifications
  83. GM5340362Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) @ Catalytic Converter Brace Bracket - Install and tighten [2x] - Fastener Specifications

  84. GM5341429Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Tighten - Fastener Specifications

  85. GM5151789Courtesy of GENERAL MOTORS COMPANY

    Coat the threads of the exhaust particulate matter sensor (1) with anti-seize compound. Adhesives, Fluids, Lubricants, and Sealers

  86. Using a suitable tool, install and tighten the exhaust particulate matter sensor (1) to the nitrogen oxides catalytic converter. Fastener Specifications
  87. GM5150652Courtesy of GENERAL MOTORS COMPANY

    Coat the threads of the nitrogen oxides sensor - position 3 (1) with anti-seize compound. Adhesives, Fluids, Lubricants, and Sealers

  88. Using a suitable tool, install and tighten the position 3 nitrogen oxides sensor (1) to the nitrogen oxides catalytic converter. Fastener Specifications
  89. GM5149436Courtesy of GENERAL MOTORS COMPANY

    Coat the threads of the position 2 nitrogen oxides sensor (1) with anti-seize compound. Adhesives, Fluids, Lubricants, and Sealers

  90. Using a suitable tool, install and tighten the position 2 nitrogen oxides sensor (1) to the nitrogen oxides catalytic converter. Fastener Specifications
  91. GM5153130Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, install and tighten the position 3 exhaust gas temperature sensor (1). Fastener Specifications

  92. Partially lower the vehicle.
  93. Front Wheelhouse Liner - Right Side - Install - Front Wheelhouse Liner Replacement
  94. GM5572432Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front End Sheet Metal Diagonal Brace - Left Side and Right Side (2) - Install [2x]

  95. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  96. Front End Sheet Metal Diagonal Brace Bolt - Left Side and Right Side (1) - Install and tighten [4x] - Fastener Specifications
  97. GM5617832Courtesy of GENERAL MOTORS COMPANY

    Intake Air Splash Shield (2) - Install

  98. Intake Air Baffle Retainer (1) - Install [9x]
  99. GM5541781Courtesy of GENERAL MOTORS COMPANY

    Hood Secondary Latch Release Handle (2) - Install

  100. Hood Latch Actuator Bolt (1) - Install and tighten [2x] - Fastener Specifications
  101. Oil Filler Cap - Remove
  102. GM5171779Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (2) - Install

  103. Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications
  104. Oil Filler Cap - Install
  105. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  106. Fill the transmission to the proper level with NEW transmission fluid. Transmission Fluid Level and Condition Check
  107. Inspect for Leaks