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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 >> Lower Crankcase Extension Replacement (RWD) >> 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. GM5335087

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

  2. GM5335089

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

  3. Transmission - Remove - Transmission Replacement (Rear Wheel Drive) , or Transmission Replacement (All Wheel Drive)
  4. GM4968252
    NOTE:

    The timing pin 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 and twisting to locked position. The slide part to be installed to the flexplate when torque is applied to the flexplate or crankshaft balancer bolt.

    EN-52476  Flywheel Lock and Alignment Tool (1) - Install

  5. Automatic Transmission Flex Plate Bolt (2) - Loosen [8x]
  6. EN-52476  Flywheel Holding Tool (1) - Remove
  7. GM4968275

    Automatic Transmission Flex Plate Bolt (2) - Remove and DISCARD [8x]

  8. Automatic Transmission Flex Plate (1) - Remove
  9. GM5319643

    Disconnect the electrical connector.

  10. Crankshaft Position Sensor Bolt (1) - Remove
  11. Crankshaft Position Sensor (2) - Remove
  12. GM4994688
    CAUTION:

    Do not allow the crankshaft position sensor reluctor ring to come into contact with external magnetic fields or sharp metal objects. Do not drop the crankshaft position sensor reluctor ring. Do not damage the rubberized encoder track. Failure to follow these precautions may cause damage to the component.

    Crankshaft Position Sensor Inner Exciter Ring (1) - Remove

  13. Flywheel Locating Pin (2) - Remove
  14. Disconnect harness retainers from lower oil pan as needed.
  15. GM5442545

    Lower Oil Pan Bolt (1) - Remove [18x]

    16. NOTE:
    1. Do not pry on the oil pan to LCE as the sealing surface will become damaged.
    2. Use the lower oil pan bolts in the provided jack screw or threaded inserts in the oil pan. Tighten the jack screw by hand 1 to 2 turn each uniformly and move to the next screw until the oil pan has full separation from the LCE.
  16. Lower Oil Pan (2) - Remove
  17. GM5027542

    Install the EN-52441  Balance Shaft Timing Tool (1) through the hole in the oil pump. Use suitable strap to hold in place.

  18. GM5116895

    Crankshaft Rear Oil Seal Housing Bolt (1) - Remove [13x]

    19. NOTE:

    It is likely you will bend the housing during removal. Use care to not damage the engine block.

  19. Loosen the crankshaft rear oil seal housing (2) carefully from the engine block, use a suitable tool to pry all the way around.
  20. Crankshaft Rear Oil Seal Housing (2) - Remove and DISCARD
  21. GM5026468

    Compress the balance chain tensioner (1) by pushing in the direction of the arrow.

  22. EN-955-10-A  Locking Pin (2) - Install
  23. GM5026521

    Balancer Chain Tensioner Bolt (2) - Remove [2x]

  24. Balancer Chain Tensioner (1) - Remove
  25. GM5573291

    If the balancer chain tensioner (1) needs put back together, install the retaining spring (3) and the plunger (2), then install the EN-955-10-A  Locking Pin to reset the tensioner.

  26. GM5026863

    Balance Chain Guide Bolt (1) - Remove [2x]

  27. Balancer Chain Guide (2) - Remove
  28. GM5027533

    Hold on the balance shaft sprocket (1) with a suitable wrench to loose the balance shaft sprocket bolt (2).

  29. Balancer Shaft Sprocket Bolt (2) - Remove and DISCARD
  30. GM5027532

    Balance Chain (1) - Remove

  31. Disconnect harness connectors and retainers as needed.
  32. GM5316589

    Air Conditioning Compressor Bolt (2) - Remove

  33. GM5491651
    NOTE:

    Only need to remove the 2 that are attached to the lower crankcase extension.

    Engine Mount Bracket Bolt- Right Side (1) - Remove and DISCARD

  34. GM5335749

    Engine Mount Bracket Bolt- Left Side (1) - Remove and DISCARD

  35. GM5136171

    Oil Pump Screen Bolt (1) - Remove

  36. Oil Pump Screen (2) - Remove
  37. Oil Pump Suction Pipe Gasket (3) - Remove and DISCARD
  38. GM5436655

    Oil Filter Bypass Valve (1) - Remove

  39. GM5336109

    Balancer Shaft Access Hole Nut (1) - Remove

  40. Balancer Shaft Access Hole Washer (2) - Remove
    41. NOTE:

    Rotate and tilt the balancer shaft access hole plate as necessary to remove through the access hole.

  41. Balancer Shaft Access Hole Plate (3) - Remove
  42. GM5129462
    NOTE:

    Take note that there are different bolt lengths.

    Lower Crankcase Extension Bolt (1, 2, 3, 4, 5) - Remove [15x]

  43. GM5026209
    NOTE:

    Take note that there are different bolt lengths.

    Lower Crankcase Extension Bolt (1, 2, 3) - Remove [3x]

  44. GM5026315

    Loosen the lower crankcase extension (LCE) carefully from the engine block, use a suitable tool at the location as shown to pry. (1, 2, 3)

  45. GM5026210

    Lower Crankcase Extension (1) - Remove

  46. GM5129979

    Engine Oil Temperature Sensor (1) - Remove

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