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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Mechanical - 2.0L (LSY) - Repair Instructions (2 Of 3)) >> Repair Instructions >> Crankshaft Sprocket Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the oil fill cap.
    2. NOTE:

    Leave the oil filter in place, or oil will continue to drip.

  2. Drain the engine oil. Engine Oil and Oil Filter Replacement (RWD) , or Engine Oil and Oil Filter Replacement (AWD)
  3. Disconnect the battery. Battery Negative Cable Disconnection and Connection
  4. GM5335087

    Lift up on the front of the intake manifold cover (1).

  5. GM5335089

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

  6. GM5080707

    Disconnect the evaporative emission canister purge tube quick disconnects (1). Plastic Collar Quick Connect Fitting Service

  7. Disconnect the evaporative emission canister purge tube (2) from the retainer (3).
  8. GM5285267

    Retainer (1) - Unclip [3x]

  9. Engine Wiring Harness (2) - Reposition
  10. GM5335764
  11. Oil Level Indicator (1) - Remove
  12. GM5136547
  13. Electrical Connector (1) @ Oil Level Indicator Tube (3) - Unclip
  14. Oil Level Indicator Tube Bracket Bolt (2) - Remove
  15. GM5068106

    Oil Level Indicator Tube (1) - Remove

  16. Oil Level Indicator Tube Seal (2) - Remove and DISCARD
  17. GM5129599

    Use a suitable tool to rotate the drive belt tensioner (1) counterclockwise and hold.

  18. GM5129786

    Accessory Drive Primary Belt (1) - Remove

  19. Slowly release tension on the drive belt tensioner.
  20. Raise and support the vehicle. Lifting and Jacking the Vehicle
  21. GM5460874

    Battery Negative Cable Nut (1) @ Starter Stud - Remove

  22. Engine Wiring Harness Retainer (2) - Disengage [2x]
  23. Auxiliary Generator Battery Jumper Cable (3) - Remove
  24. GM5460935

    Electrical Connector (1) - Disconnect

  25. GM5460947

    Battery Positive Cable Nut (1) @ Starter Solenoid - Remove

  26. Auxiliary Generator Battery Jumper Cable (2) - Remove
  27. GM5319715

    Starter Stud (1) - Remove

  28. Starter Bolt (2) - Remove [2x]
  29. Starter (3) - Remove
  30. GM5164169
    NOTE:

    The timing pin (3) is installed into the flexplate for engine timing procedures, it can be damaged if torque is applied to the flexplate with the timing pin engaged. The timing pin must be placed in the retracted position using the handle (1) and twisting to locked position. The slide part (4) to be installed to the flexplate when torque is applied to the flexplate or crankshaft balancer bolt.

    Install the slide (4) from the EN-52476  Flywheel Lock and Alignment Tool (1) to the automatic transmission flexplate.

  31. Lower the vehicle.
  32. GM4998850

    Crankshaft Balancer Bolt (1) - Remove and DISCARD

  33. Crankshaft Balancer (2) - Remove
  34. GM4997997

    Engine Front Cover Bolt (1) - Remove [9x]

  35. Engine Front Cover (2) - Remove and DISCARD
  36. GM5164169

    Remove the slide (4) from the EN-52476  Flywheel Lock and Alignment Tool (2) from the automatic transmission flexplate.

  37. GM5525924

    Camshaft Cover Opening Plug (1) - Remove [2x]

  38. GM5285281
    NOTE:

    Rotate the engine using the crankshaft balancer until the locking pins of the EN-52462-A  Camshaft Alignment Tool (1) drop into the slots in the camshafts.

    EN-52462-A  Camshaft Alignment Tool (1) - Install

  39. Insert the bolt (2) of the EN-52462-A  Camshaft Alignment Tool (1) into the camshaft carrier and tighten to secure the tool to the camshaft carrier.
  40. GM5002071

    Lock the EN-52462-A  Camshaft Alignment Tool (1) by rotating the levers in direction of arrow.

  41. GM5164169
    NOTE:

    The timing pin (3) is installed into the flexplate for engine timing procedures, it can be damaged if torque is applied to the flexplate with the timing pin engaged. The timing pin must be placed in the retracted position using the handle (1) and twisting to locked position. The slide part (4) to be installed to the flexplate when torque is applied to the flexplate or crankshaft balancer bolt.

    Remove the slide (4) from the EN-52476  Flywheel Lock and Alignment Tool (2) from the automatic transmission flexplate and install the timing pin (3) by releasing the handle (1).

  42. GM5562846

    Disconnect the 2 electrical connectors from the camshaft position actuator solenoids.

  43. Retainer (1) @ Timing Chain Upper Cover (2) - Unclip [6x]
  44. Engine Wiring Harness (3) - Reposition
  45. GM5439440

    Camshaft Position Actuator Valve Solenoid Bolt (1) - Remove [2x]

  46. Camshaft Position Actuator Valve Solenoid (2) - Remove
  47. Camshaft Position Actuator Magnet Gasket (3) - Remove and DISCARD
  48. GM5439441

    Camshaft Position Actuator Valve Solenoid Bolt (1) - Remove [2x]

  49. Camshaft Position Actuator Valve Solenoid (2) - Remove
  50. Camshaft Position Actuator Magnet Gasket (3) - Remove and DISCARD
  51. GM4997059

    Timing Chain Upper Cover Bolt-M6 (3) - Remove

  52. Timing Chain Upper Cover Bolt-M5 (2) - Remove [11x]
  53. GM4997066

    Timing Chain Upper Cover (2) - Remove

  54. Timing Belt Front Upper Cover Seal (1) - Remove and DISCARD
  55. GM5127075

    Mark both actuator sprockets (1), timing chain, and the camshaft housing cover from the center of the bolt upward as shown with a paint marker or equivalent to help with installation.

  56. GM5002066

    Install the EN-52461  Cam Phaser Torque Reaction Tool (2) to the 2 EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool (3).

  57. Hand tighten the 2 bolts (1, 4) of EN-52461  Cam Phaser Torque Reaction Tool.
  58. GM5002065

    Install the EN-52461  Cam Phaser Torque Reaction Tool (5) along with the 2 EN-52461  Cam Phaser Torque Reaction Tool (2, 3) to the camshaft carrier.

  59. Tighten the 2 bolts (1, 4) of EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool.
  60. Tighten the 2 bolts from the EN-52461  Cam Phaser Torque Reaction Tool to the 2 EN-52461  Cam Phaser Torque Reaction Tool that were hand tightened.
  61. GM5002079

    Install the EN-52461 - 1  Holder (1) to the holes in the camshaft sprocket.

  62. Check that the EN-52461 - 1  Holder (1) sits correctly in the hole of the camshaft sprocket.
  63. To take tension of the actuators and loosen timing chain. Turn the exhaust side counter clockwise to 6 N.m (53 lb in) and tighten bolt (3) just enough to hold the EN-52461 - 1  Holder (1) in place.
  64. Turn the intake side counter clockwise to 6 N.m (53 lb in) and tighten bolt (4) just enough to hold the EN-52461 - 1  Holder (1) in place.
  65. GM5150021

    Camshaft Sprocket Bolt (1) - Remove and DISCARD [2x]

  66. GM5002079

    Bolt (3, 4) - Loosen

  67. GM5002080
    CAUTION:

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

    Hold the intake camshaft sprocket (1) with hand from underneath the EN-52461  Cam Phaser Torque Reaction Tool (2) and pull out the EN-52461 - 1  Holder and the intake camshaft sprocket will drop down in hand so you can remove it.

  68. GM5002084

    Hold the exhaust camshaft sprocket (1) with hand from underneath the EN-52461  Cam Phaser Torque Reaction Tool (2) and pull out the EN-52461 - 1  Holder (2) and the exhaust camshaft sprocket will drop down in hand so you can remove it.

  69. GM5431937

    Timing Chain (1) - Reposition

  70. Inspect the timing chain guides and replace if worn down to the base material.
  71. GM5432135

    Timing Chain Tensioner Bolt (1) - Remove [2x]

    72. NOTE:

    The timing chain tensioner plunger is spring loaded, hold the plunger in place as tensioner is removed to prevent losing components of the timing chain tensioner.

  72. Timing Chain Tensioner (2) - Remove
  73. GM5442502

    Remove the timing chain tensioner plunger (1) from the timing chain tensioner body (2).

  74. GM5442505
    NOTE:

    The ratchet mechanism will lock into place when inward pressure is released after it is turned clockwise until it is fully retracted.

    Use the J-45027-1  Tensioner Tool Handle (1) to press the ratchet mechanism of the timing chain tensioner plunger (2) inward while rotating it clockwise.

    75. NOTE:

    If the ratchet mechanism does not lock into place and begins to extend outward, reapply inward pressure with clockwise rotation until the ratchet mechanism will not rotate further, then release into the locked position.

  75. Release pressure on the ratchet mechanism of the timing chain plunger (2) until it locks into place.
  76. Remove the J-45027-1  Tensioner Tool Handle (1).
  77. GM5442502

    Install the timing chain plunger (1) into the timing chain tensioner body (2).

  78. GM5442541
    NOTE:

    Applying pressure to the timing chain tensioner plunger assembly will unlock the tensioner, it will then fully extend if pressure is released prior to installing the EN-955-10A  Locking Pin and will need to be reset again.

    Push in and hold the timing chain tensioner plunger, insert the EN-955-10A  Locking Pin (1) into the timing chain tensioner (2), then release the timing chain tensioner plunger.

  79. GM5091849

    Crankshaft Sprocket (1) - Remove

  80. Crankshaft Front Seal (2) - Remove and DISCARD
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