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Home >> Cadillac >> 2021 >> CT5 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 3.0L (LGY)) >> Repair Instructions >> Engine Replacement (AWD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  2. Recover the refrigerant. Refrigerant Recovery and Recharging
  3. Drain the cooling system. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) , or Cooling System Draining and Filling (LGY Static Fill) , or Cooling System Draining and Filling (LGY GE 47716)
  4. GM5413177Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (2) - Remove - Intake Manifold Cover Replacement 

  5. Remove the front compartment front sight shield. Front Compartment Front Sight Shield Replacement
  6. GM5508628Courtesy of GENERAL MOTORS COMPANY

    Radiator Surge Tank Inlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  7. Radiator Surge Tank Inlet Hose (2) @ Engine Coolant Air Bleed Pipe - Disconnect
  8. Remove the air cleaner assembly. Air Cleaner Assembly Replacement
  9. Engine Wiring Harness Junction Block - Remove - Engine Wiring Harness Junction Block Replacement
  10. GM5509178Courtesy of GENERAL MOTORS COMPANY

    Harness Connector (1) - Disconnect

  11. GM5509258Courtesy of GENERAL MOTORS COMPANY

    Engine Control Module Electrical Connector (1) - Disconnect [ 4X ]

  12. Detach harness retainers and reposition the engine harness on the engine.
  13. GM5485255Courtesy of GENERAL MOTORS COMPANY

    Radiator Inlet Hose Clamp (1) @ Water Outlet - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  14. Radiator Inlet Hose (2) @ Water Outlet - Remove
  15. Charge Air Cooler Coolant Hose - Remove - Charge Air Cooler Cover Replacement 
  16. GM4251533Courtesy of GENERAL MOTORS COMPANY

    Radiator Outlet Hose Clamp (1) @ Water Pump Inlet Pipe - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  17. Radiator Outlet Hose (2) @ Water Pump Inlet Pipe - Remove
  18. GM5512145Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Inlet Hose Clamp (1) @ Engine Oil Cooler Inlet Pipe - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  19. Engine Oil Cooler Inlet Hose (2) @ Engine Oil Cooler Inlet Pipe - Remove
  20. GM5512371Courtesy of GENERAL MOTORS COMPANY

    Heater Inlet Hose (2) @ Heater Core - Disconnect - Heater Inlet Hose Replacement (LSY) , or Heater Inlet Hose Replacement (LGY)

  21. Heater Outlet Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  22. Heater Outlet Hose (4) - Disconnect
  23. GM4248695Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Pipe (1) - Remove - Fuel Feed Pipe Replacement

  24. Evaporative Emission Canister Purge Pipe @ Evaporative Emission Canister Purge Solenoid Valve - Disconnect - Evaporative Emission Pipe Replacement
  25. GM4256332Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor and Condenser Hose Nut (2) - Remove

  26. Air Conditioning Compressor and Condenser Hose (3) - Remove
  27. Sealing Washer (1) - Remove and DISCARD
  28. GM4256330Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporative Connector Hose/Tube and Compressor and Condenser Hose Nut (1) - Remove

  29. Air Conditioning Evaporative Connector Hose/Tube and Compressor and Condenser Hose (3) - Remove
  30. Sealing Washer (2) - Remove and DISCARD
  31. GM5513736Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Nut (3) @ Transmission Fluid Cooler - Remove - Transmission Fluid Auxiliary Cooler Replacement (LGY, AWD, RWD)

  32. Transmission Fluid Cooler Pipe Clip (1) @ Transmission Fluid Cooler Hose - Disconnect
  33. Transmission Fluid Cooler Pipe Bracket Bolt (2) @ Transmission Fluid Cooler Inlet Hose - Remove
  34. Warm Up Three-Way Catalytic Converter-Right Side - Remove - Warm Up Three-Way Catalytic Converter Replacement - Right Side
  35. Warm Up Three-Way Catalytic Converter-Left Side - Remove - Warm Up Three-Way Catalytic Converter Replacement - Left Side
  36. Remove the lower transmission bolts and disconnect all transmission electrical connectors and wiring harness retainers. Transmission Replacement (AWD)
  37. GM5312788Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Wheelhouse Liner- Left Side and Right Side (3) - Remove - Front Wheelhouse Liner Replacement

  38. GM5313368Courtesy of GENERAL MOTORS COMPANY

    Front Compartment Air Deflector (1) - Remove - Front Compartment Air Deflector Replacement (AWD)

  39. GM5284452Courtesy of GENERAL MOTORS COMPANY

    Front Bumper Fascia Center Air Deflector (1) - Remove - Front Bumper Fascia Center Air Deflector Replacement

  40. Front Crossmember Brace-Right Side - Remove - Front Crossmember Brace Replacement - Right Side
  41. Front Crossmember Brace-Left Side - Remove - Front Crossmember Brace Replacement - Left Side
  42. GM5341097Courtesy of GENERAL MOTORS COMPANY

    Front Wheel Drive Half Shaft-Right Side (1) - Separate - Front Wheel Drive Half Shaft Replacement - Right Side

  43. Front Wheel Drive Half Shaft-Left Side (1) - Separate - Front Wheel Drive Half Shaft Replacement - Left Side
  44. Front Differential Carrier Assembly - Remove - Front Differential Carrier Assembly Replacement
  45. GM4991551Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Stabilizer Shaft Link- Left Side and Right Side (1) @ Stabilizer Shaft - Remove - Stabilizer Shaft Link Replacement (FE2) , or Stabilizer Shaft Link Replacement (FE3)

  46. GM5330387Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Lower Control Front Link- Left Side and Right Side (1) @ Steering Knuckle - Separate - Front Lower Control Front Link Replacement (AWD)

  47. GM5330516Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Lower Control Rear Link- Left Side and Right Side (1) @ Drivetrain and Front Suspension Cradle - Separate - Front Lower Control Rear Link Replacement (AWD)

  48. GM5330316Courtesy of GENERAL MOTORS COMPANY

    Intermediate Steering Shaft (2) @ Steering Gear - Disconnect - Intermediate Steering Shaft Replacement (AWD)

  49. GM5316620Courtesy of GENERAL MOTORS COMPANY

    Disconnect the steering gear electrical connectors. (1)

  50. GM5335427Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Retainer (1) - Disengage [ 6x ]

  51. GM5335541Courtesy of GENERAL MOTORS COMPANY

    Engine Mount Nut-Left Side (1) - Remove

  52. GM5335537Courtesy of GENERAL MOTORS COMPANY

    Engine Mount Nut-Right Side (1) - Remove

  53. NOTE:

    Removing the powertrain assembly from the vehicle could cause an unstable balance condition with the vehicle body on the vehicle hoist. Securing the vehicle body to the hoist is necessary.

  54. Secure the vehicle body to the vehicle hoist using suitable straps or binders.
  55. GM5326445Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bracket Bolt (1) - Remove [ 4X ] - Transmission Mount Replacement (AWD)

  56. Lower the powertrain and drivetrain and front suspension cradle onto the GE-52200  Propulsion System Lift Table or a suitable support table.
  57. GM5335619Courtesy of GENERAL MOTORS COMPANY

    Drivetrain and Front Suspension Cradle Bolt (2) - Remove and DISCARD [ 4X ]

  58. Drivetrain and Front Suspension Cradle Rear Bolt (1) - Remove and DISCARD [ 2x ]
  59. Secure the powertrain to the table using suitable straps and binders or chains.
  60. Ensure when lowering the engine, transmission and front suspension cradle, the following items are clear from the drivetrain and front suspension cradle:
    • Vacuum lines
    • Steering knuckles
    • Electrical wiring harnesses
    • Oil cooler lines
  61. With the aid of an assistant, carefully lower the engine, transmission and front suspension cradle.
  62. Separate the transmission from the engine assembly. Transmission Replacement (AWD)
  63. Transfer components as necessary.