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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Engine Controls And Fuel - 3.6L (LF4) - Repair Instructions (2 Of 3)) >> Repair Instructions >> Turbocharger Wastegate Actuator Replacement - Left Side >> Installation Procedure

Installation Procedure

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  1. GM5880461Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Wastegate Actuator (2) - Install

    2. CAUTION:

    Refer to Fastener Caution .

  2. Turbocharger Wastegate Actuator Bolt (1) - Install and tighten - Fastener Specifications
  3. GM5880460Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Wastegate Actuator Arm Retainer (2) - Install

    4. NOTE:

    Ensure the wastegate vacuum connection is fully seated and secure. A poor connection can result in a DTC and lead to misdiagnosis.

  4. Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (1) @ Turbocharger Wastegate Actuator - Connect - Plastic Collar Quick Connect Fitting Service
  5. GM5879216Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield (1) - Install

  6. GM5879181Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Install and tighten - Fastener Specifications

  7. GM5872277Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Exhaust Pipe Gasket (2) - Install NEW

  8. Warm Up Three-Way Catalytic Converter (1) - Install
  9. GM5872256Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Install and tighten [4x] - Fastener Specifications

  10. GM5786728Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

    Using a suitable tool, install and tighten the heated oxygen sensor (1). Fastener Specifications

  11. Connect the heated oxygen sensor electrical connector.
  12. GM5786732Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, install and tighten the heated oxygen sensor (1). Fastener Specifications

  13. Connect the heated oxygen sensor electrical connector.
  14. GM5867464Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace (2) - Install

  15. Catalytic Converter Brace Bracket Nut (1) - Install and tighten [5x] - Fastener Specifications
  16. GM5865329Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Gasket (2) - Install NEW

  17. With the aid of an assistant, install the exhaust muffler (1).
  18. GM5865300Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler Hanger Bracket Nut (1) - Install and tighten [4x] - Fastener Specifications

  19. GM5865293Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  20. GM5865287Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  21. GM5406632Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install [2x]

  22. GM5406578Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install [2x]

  23. GM5865271Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Tighten [2x] - Fastener Specifications

  24. GM5865265Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Install and tighten [2x] - Fastener Specifications

  25. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Reinforcement (2) - Install

  26. Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Install and tighten [6x] - Fastener Specifications
  27. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Right Side (5) - Install

  28. Underbody Rear Air Deflector Nut- Right Side (3) - Install and tighten [3x] - Fastener Specifications
  29. Underbody Rear Air Deflector Bolt- Right Side (2) - Install and tighten [3x] - Fastener Specifications
  30. Underbody Rear Air Deflector Nut- Right Side (4) - Install and tighten [2x] - Fastener Specifications
  31. Rear Wheelhouse Liner Bolt- Right Side (1) - Install and tighten - Fastener Specifications
  32. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Left Side (5) - Install

  33. Underbody Rear Air Deflector Nut- Left Side (2) - Install and tighten [3x] - Fastener Specifications
  34. Underbody Rear Air Deflector Bolt- Left Side (3) - Install and tighten [3x] - Fastener Specifications
  35. Underbody Rear Air Deflector Nut- Left Side (4) - Install and tighten [2x] - Fastener Specifications
  36. Rear Wheelhouse Liner Bolt- Left Side (1) - Install and tighten - Fastener Specifications
  37. GM5395705Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Left Side and Right Side (2) - Install [2x]

  38. Rear Tire Front Air Deflector Bolt- Left Side and Right Side (1) - Install and tighten [4x] - Fastener Specifications
  39. Lower the vehicle.
  40. GM5879148Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications

  41. GM5873812Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Coolant Return Pipe (3) - Install

  42. Turbocharger Coolant Feed and Return Pipe Gasket (2) - Install NEW [2x]
  43. Turbocharger Coolant Feed and Return Pipe Bolt (1) - Install and tighten - Fastener Specifications
  44. GM5873802Courtesy of GENERAL MOTORS COMPANY

    Retaining Clip (1) - Install

  45. GM5844325Courtesy of GENERAL MOTORS COMPANY

    Charge Air Bypass Valve Hose (2) - Install

  46. Charge Air Bypass Valve Hose Clamp (1) - Tighten [2x] - Fastener Specifications
  47. GM5860358Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Cleaner Outlet Duct (1) - Install

  48. GM5860357Courtesy of GENERAL MOTORS COMPANY

    Retainer Spring (3) - Engage

  49. Charge Air Bypass Valve Hose (2) - Install
  50. Charge Air Bypass Valve Hose Clamp (1) - Tighten - Fastener Specifications
  51. GM5860356Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct Clamp (2) - Tighten - Fastener Specifications

  52. Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (1) - Connect - Plastic Collar Quick Connect Fitting Service
  53. GM5846598Courtesy of GENERAL MOTORS COMPANY

    Install the NEW positive crankcase ventilation fresh air tube (2) and secure the 2 positive crankcase ventilation tube connectors (1).

  54. GM5839283Courtesy of GENERAL MOTORS COMPANY

    Oil Filler Cap - Remove

  55. Intake Manifold Cover (2) - Install
  56. Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications
  57. Oil Filler Cap - Install
  58. Fill the cooling system to the proper level. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) , or Cooling System Draining and Filling (LSY with V03 Static Fill) , or Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  59. Connect the negative battery cable. Battery Negative Cable Disconnection and Connection
  60. Start the engine and check for coolant leaks.
  61. Inspect the exhaust system for leaks.
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