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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 158 (Engine Mechanical - 2.7L (L3B) - Repair Instructions (1 Of 3)) >> Repair Instructions >> Camshaft Position Actuator Replacement >> Installation Procedure

Installation Procedure

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  1. GM5257435
    NOTE:

    Lubricate under the washer surface.

    Lubricate the NEW camshaft position actuator valve solenoid bolts (1) with clean engine oil where indicated. Adhesives, Fluids, Lubricants, and Sealers

  2. GM5299894

    Install the exhaust camshaft position actuator (3) and the intake camshaft position actuator (4) before installing the tool.

  3. GM5257330

    Install and hand tighten the NEW camshaft position actuator valve solenoid bolt (1).

  4. GM5256386
    NOTE:

    Ensure the camshaft carrier and cylinder head face are clean and free from RTV prior to installing the EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter.

    EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter (2) - Install [2x]

  5. Install and tighten the two EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter bolts (3) enough to secure the EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter (2) to the cylinder head.
  6. GM5257213

    EN-52461  Camshaft Torque Reaction Tool (1) @ EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter (2) - Install

  7. Install and tighten the two EN-52461  Camshaft Torque Reaction Tool bolts (3).
  8. GM5274568

    EN-52436  Timing Chain Tensioner Retention Tool (1) @ Timing Chain (2) - Remove

  9. GM5257414
    CAUTION:

    Hold the camshaft position actuator firmly and squarely during camshaft position actuator valve solenoid bolt removal/installation. Failure to do so may result in damage to the inside of the camshaft position actuator.

    NOTE:

    Pressure must be applied towards the engine on the EN-52461  Camshaft Torque Reaction Tool at points (3) prior to and during any time the following two conditions are simultaneously met.

    • The camshaft position actuator valve solenoid bolt is loosened or removed.
    • The EN-52461  Camshaft Torque Reaction Tool bolts (2, 3) are loosened.

    Shift the slack in the timing chain to be taken up by the timing chain tensioner.

    1. Use a wrench to turn the EN-52461  Camshaft Torque Reaction Tool (1) counter-clockwise 6 N.m 53 lb in, then hold.
    2. Tighten the EN-52461  Camshaft Torque Reaction Tool bolt (2) to lock the intake actuator securely in place.
    3. Remove the wrench from EN-52461  Camshaft Torque Reaction Tool (1).
    4. Use a wrench to turn the EN-52461  Camshaft Torque Reaction Tool (4) counter-clockwise 6 N.m 53 lb in, then hold.
    5. Tighten the EN-52461  Camshaft Torque Reaction Tool bolt (3) to lock the exhaust actuator securely in place.
    6. Remove the wrench from EN-52461  Camshaft Torque Reaction Tool (4).
  10. GM5257299

    Tighten the NEW camshaft position actuator valve solenoid bolt (1). Fastener Specifications

  11. GM5257293

    Loosen the EN-52461  Camshaft Torque Reaction Tool bolts (2) to un-lock the actuators.

  12. Disengage the tangs of the EN-52461  Camshaft Torque Reaction Tool (1) from the intake and exhaust camshaft position actuator slots.
  13. GM5257213

    Remove the two EN-52461  Camshaft Torque Reaction Tool bolts (3).

  14. EN-52461  Camshaft Torque Reaction Tool (1) @ EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter (2) - Remove
  15. GM5256386

    Remove the two EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter bolts (3).

  16. EN-52461-200  Camshaft Torque Reaction Tool 2.7L Adapter (2) - Remove [2x]
  17. Rotate both handles (4) of the EN-52462-A  Camshaft Alignment Tool towards the front of the engine.
  18. GM5256287

    Loosen and disengage the EN-52462-A  Camshaft Alignment Tool bolt (2) from camshaft carrier.

  19. EN-52462-A  Camshaft Alignment Tool (1) - Remove
  20. GM5002064

    Clean and apply sealant to the camshaft cover core hole plug (1) [2x]. Adhesives, Fluids, Lubricants, and Sealers

  21. Camshaft Cover Core Hole Plug (1) - Install and tighten [2x] - Fastener Specifications
  22. Camshaft Carrier Bolt (2) - Install and tighten - Fastener Specifications
  23. GM5022287

    Engine Front Cover Locating Pin (1) - Install [2x]

  24. Timing Belt Front Upper Cover Seal (2) - Install NEW
  25. GM5512168
    NOTE:

    Ensure that the sealing surface is clear of oil, grease and old sealant material.

    NOTE:

    Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant

    NOTE:

    The timing chain upper cover must be installed within 8 minutes of the RTV sealant application.

    Apply room temperature vulcanizing (RTV) sealant at the seam between the camshaft housing and the cylinder head where indicated. Adhesives, Fluids, Lubricants, and Sealers

  26. GM5022287

    Timing Chain Upper Cover (3) - Install

  27. Timing Chain Upper Cover Bolt (4) - Install and hand tighten [9x]
  28. Timing Chain Upper Cover Bolt (5) - Install and hand tighten
  29. Timing Chain Upper Cover Bolt (4, 5) - Tighten in sequence [10x] - Fastener Specifications
  30. GM5020482

    Camshaft Position Actuator Magnet Gasket (3) - Install NEW [2x]

  31. Camshaft Position Actuator Magnet (2) - Install [2x]
  32. Camshaft Position Actuator Magnet Bolt (1) - Install and tighten [4x] - Fastener Specifications
  33. GM5164169

    Remove the EN-52476  Flywheel Lock and Alignment Tool.

  34. GM5417288

    Auxiliary Generator Battery Jumper Cable (2) - Install

  35. Battery Positive Cable Nut (1) @ Starter Solenoid - Install and tighten - Fastener Specifications
  36. Electrical Connector (4) - Connect
  37. Starter (3) - Install
  38. GM5417249

    Starter Bolt (2) - Install and tighten [2x] - Fastener Specifications

  39. Starter Stud (1) - Install and tighten - Fastener Specifications
  40. GM5417233

    Auxiliary Generator Battery Jumper Cable - Install

  41. Auxiliary Generator Battery Jumper Cable Terminal Nut (1) - Install and tighten - Fastener Specifications
  42. Retainer (3) - Engage
  43. GM5396466

    Engine Oil Cooler Seal (2) - Install NEW [2x]

  44. Engine Oil Cooler (1) - Install
  45. GM5396459

    Engine Oil Cooler Bolt (1) - Install and tighten [4x] - Fastener Specifications

  46. GM5396452

    Engine Oil Cooler Coolant Inlet Hose (3) @ Engine Oil Cooler - Install

  47. Engine Oil Cooler Coolant Outlet Hose (2) @ Engine Oil Cooler - Install
  48. Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  49. GM5398967

    Air Cleaner Outlet Duct (1) - Install

  50. GM5398955

    Positive Crankcase Ventilation Tube (3) - Connect - Plastic Collar Quick Connect Fitting Service

  51. Air Cleaner Outlet Duct Clamp (1) - Tighten [2x] -
  52. Connect the electrical connector.
  53. GM5395515

    Evaporative Emission Canister Purge Tube (1) - Install - Plastic Collar Quick Connect Fitting Service

  54. GM5512093

    Retainer (1) - Install

  55. GM5512092

    Positive Crankcase Ventilation Tube (4) - Connect - Plastic Collar Quick Connect Fitting Service

  56. Engine Wiring Harness (3) - Reposition
  57. Retainer (2) - Install [5x]
  58. Electrical Connector (1) - Connect [2x]
  59. GM5456829
    NOTE:

    Ensure the intake manifold cover insulator retainers fully engage the intake manifold cover studs.

    Intake Manifold Cover Insulator (1) - Install

  60. GM5456746

    Intake Manifold Cover Bolt (1) - Install - Fastener Specifications

  61. GM5432174

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Install

  62. GM5432171

    Push down on the front of the intake manifold cover (2).

  63. Intake Manifold Cover Bolt (1) - Install [2x] - Fastener Specifications
  64. Install the oil fill cap.
  65. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
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