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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 196 (Frame And Underbody) >> Repair Instructions >> Drivetrain and Front Suspension Frame Removal and Installation (LF4) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Suspension components attached to the frame use Torque-to-Yield fasteners and must be DISCARDED and replaced with NEW Torque Angle Yield (TAY) fasteners. The frame to body fasteners are not TAY fasteners.

NOTE:

Vehicle alignment is not required if the cradle is being lowered or dropped to perform another procedure. This vehicle is equipped with a cradle to body aligning feature: cradle to body through holes or self-aligning pins that are part of the cradle or body. Only align if replacing the cradle with a NEW part and transferring components.

  1. Using mechanics wire, support the radiator and AC condenser assembly to the vehicle body.
  2. Install the engine support fixture. Engine Support Fixture (LF4)
  3. Fig 1: Vacuum Filter
    GM4017059Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the vacuum filter from the radiator assembly. (1)
  5. Fig 2: Upper Left Engine Mount
    GM4014463Courtesy of GENERAL MOTORS COMPANY
  6. Remove Engine Mount Fastener (1) @Left Engine Mount (2)
  7. Raise and support the vehicle. Lifting and Jacking the Vehicle (ATS-V)
  8. Remove the front tire and wheel assemblies. Tire and Wheel Removal and Installation (V-Series)
  9. Fig 3: Front Wheelhouse Splash Shield (RWD)
    GM3751988Courtesy of GENERAL MOTORS COMPANY
  10. Remove Front Wheelhouse Splash Shield (3)Front Wheelhouse Splash Shield Replacement (Rear Wheel Drive) 
  11. Fig 4: Front Compartment Lower Noise Shield
    GM4011552Courtesy of GENERAL MOTORS COMPANY
  12. Remove Front Compartment Lower Noise Shield (4)Front Compartment Lower Noise Shield Replacement (Front Wheel Drive) Front Compartment Lower Noise Shield Replacement (All Wheel Drive) 
  13. Fig 5: Front Cradle Shear Plate (Left Side LF4)
    GM4010661Courtesy of GENERAL MOTORS COMPANY
  14. Remove Front Cradle Shear Plate (3) Front Cradle Shear Plate Replacement (V Series) 
  15. Fig 6: Front Bumper Fascia Air Deflector
    GM4011386Courtesy of GENERAL MOTORS COMPANY
  16. Remove Front Compartment Air Deflector (4)Front Compartment Air Deflector Replacement (V Series) 
  17. Fig 7: Transmission Fluid Cooler Inlet and Outlet Pipe Fasteners
    GM4278033Courtesy of GENERAL MOTORS COMPANY
  18. Remove { If equipped }Transmission Fluid Cooler Inlet and Outlet Pipe Fastener (1)
  19. Fig 8: Right Side Engine Mount To Frame Bolts
    GM4278414Courtesy of GENERAL MOTORS COMPANY
  20. Remove the right side engine mount to frame bolts. (1)
  21. Fig 9: Electric Power Steering Electrical Connectors And Steering Gear
    GM4016931Courtesy of GENERAL MOTORS COMPANY
  22. Disconnect Electrical Connectors (1) @Power Steering Assist Motor (2)FEP Connectors (Steering Gear)
  23. Remove the wiring harness retainers from the frame.(3)
  24. Fig 10: Engine Mount Vacuum Control Solenoid
    GM4017111Courtesy of GENERAL MOTORS COMPANY
  25. Disconnect Electrical Connector (1) @ Engine Mount Vacuum Solenoid (2)
  26. Remove the wiring harness retainers from the frame.(3)
  27. Fig 11: Intermediate Steering Shaft
    GM4278088Courtesy of GENERAL MOTORS COMPANY
  28. Disconnect Intermediate Steering Shaft (1)Intermediate Steering Shaft Replacement (RWD)
  29. Fig 12: Engine Mount Vacuum Line
    GM4017200Courtesy of GENERAL MOTORS COMPANY
  30. Disconnect Vacuum Hose (1) @Engine Mount Vacuum Hose (2)
  31. Fig 13: Stabilizer Shaft Link
    GM4092169Courtesy of GENERAL MOTORS COMPANY
  32. Remove Stabilizer Shaft Link (1) @Stabilizer Shaft Stabilizer Shaft Link Replacement (V-Series)
  33. Fig 14: Steering Linkage Outer Tie Rod (V-Series)
    GM4086081Courtesy of GENERAL MOTORS COMPANY
  34. Remove Steering Linkage Outer Tie Rod (3) Steering Linkage Outer Tie Rod Replacement (V-Series)
  35. Fig 15: Wiring Harness Retainer
    GM4278114Courtesy of GENERAL MOTORS COMPANY
  36. Disengage Wiring Harness Retainer (1)
  37. Fig 16: Electronic Suspension Front Position Sensor Connectors And Level Sensor Links
    GM4017282Courtesy of GENERAL MOTORS COMPANY
  38. Disconnect Electrical Connector (1)
  39. Disconnect Electronic Suspension Front Position Sensor (2) @Front Lower Control Rear Link (3)
  40. Fig 17: Front Lower Control Front Link
    GM4093556Courtesy of GENERAL MOTORS COMPANY
  41. Remove Front Lower Control Front Link (1) @Drivetrain and Front Suspension Cradle Front Lower Control Front Link Replacement (V-Series)
  42. Fig 18: Front Lower Control Rear Link
    GM4103868Courtesy of GENERAL MOTORS COMPANY
  43. Remove Front Lower Control Rear Link (1) @Front Steering Knuckle

    Refer to Front Lower Control Rear Link Replacement (V-Series)

  44. Fig 19: Charge Air Cooler Bracket Fasteners
    GM4278186Courtesy of GENERAL MOTORS COMPANY
  45. Remove Charge Air Cooler Bracket Fastener (1)
  46. Disengage Charge Air Cooler Bracket (2)
  47. Fig 20: Transmission Fluid Cooler Pipe Bolt
    GM4278281Courtesy of GENERAL MOTORS COMPANY
  48. Remove Transmission Fluid Cooler Pipe Bolt (1)
  49. Fig 21: Charge Air Cooler Coolant Pump (LF4)
    GM4045319Courtesy of GENERAL MOTORS COMPANY
  50. Remove Charge Air Cooler Coolant Pump (3)Charge Air Cooler Coolant Pump Replacement (LF4)
  51. Fig 22: Right Front Cradle Brace
    GM4278431Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The right front cradle brace (2) can be removed when the drivetrain and front suspension frame is lowered in the next step.

  52. Remove Right Front Cradle Brace Fastener (1)
  53. Fig 23: Drivetrain and Front Suspension Frame Fasteners
    GM4596377Courtesy of GENERAL MOTORS COMPANY
  54. Install J-39580  engine support stand under the frame.
  55. Lower the vehicle to the frame support table.
  56. Remove the four drivetrain and front suspension cradle front bolts (1).
  57. Remove the two drivetrain and front suspension cradle interior bolts (1).
  58. Remove the four drivetrain and front suspension cradle rear bolts (1).
  59. Remove the fasteners from the charge air cooler to cradle bracket. Refer to Charge Air Cooler Replacement - Left Side (LF4) .
  60. With the aid of an assistant, carefully raise the body from the frame. (3)
  61. Ensure when raising the body the following items are clear from the frame:
    • Vacuum lines
    • Steering knuckles
    • Electrical wiring harnesses
    • Oil coolers lines