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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 >> Hydraulic Valve Lash Adjuster Replacement >> Installation Procedure

Installation Procedure

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  1. GM5020690
    NOTE:

    Used valve rocker arms must be returned to the original position on the camshaft. If the camshaft is being replaced, the valve rocker arms actuated by the camshaft must also be replaced.

    Lubricate the bearings and lash adjustors (1) and valve tips (2) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers

  2. Valve Rocker Arm (1) @ Hydraulic Valve Lash Adjuster (2) - Install [16x]
  3. GM5020686

    Install the 8 intake valve rocker arms (1) with hydraulic valve lash adjuster (2).

  4. GM5020687

    Install the 8 exhaust valve rocker arms (1) with hydraulic valve lash adjuster (2).

  5. Clean all sealing surfaces.
  6. GM5149968

    EN-46109  Guide Pins - Install

    7. NOTE:

    A small amount of adhesive in the corners will help keep the gasket in place.

  7. Camshaft Cover Gasket (2) - Install NEW
  8. Camshaft Carrier (1) - Install
  9. EN-46109  Guide Pins - Remove
  10. GM5034489
    CAUTION:

    Refer to Fastener Caution .

    Camshaft Cover Stud (1) - Install and tighten in sequence [14x] - Fastener Specifications

  11. Camshaft Carrier Bolt (2) - Install and tighten in sequence-M6 [4x] - Fastener Specifications
  12. Camshaft Carrier Bolt (3) - Install and tighten in sequence-M8 [4x] - Fastener Specifications
  13. GM5124385

    Turbocharger Coolant Feed and Return Pipe Gasket (2) - Install NEW

  14. Turbocharger Coolant Feed and Return Pipe (1) - Install
  15. GM5124376

    Turbocharger Coolant Feed and Return Pipe Bolt (1) - Install [2x] - Fastener Specifications

  16. GM5124375

    Turbocharger Coolant Return Hose Clamp (2) - Engage [2x]

  17. Turbocharger Coolant Feed and Return Pipe Bolt (1) - Install [2x] - Fastener Specifications
  18. GM5311257

    Electrical Connector (1) @ Turbocharger Wastegate Actuator - Connect

  19. Engine Wiring Harness Retainer @ Turbocharger Coolant Feed and Return Pipe - Install [2x]
  20. GM5135656

    Electrical Connector (1) @ Turbocharger Bypass Valve Solenoid (2) - Connect

  21. GM5336351

    Engine Wiring Harness Bracket (3) - Install

  22. Engine Wiring Harness Conduit Nut (2) - Install and tighten - Fastener Specifications
  23. Engine Wiring Harness Conduit Bracket Bolt (1) - Install and tighten - Fastener Specifications
  24. GM5336345

    Engine Wiring Harness (2) - Reposition

  25. Retainer (1) - Install [5x]
  26. GM5512539

    Radiator Surge Tank Inlet Pipe Bracket (2) - Install [2x]

  27. Radiator Surge Tank Outlet Hose Clip Bracket Nut (1) - Install and tighten [2x] - Fastener Specifications
  28. Install harness retainers as needed.
  29. 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 flex plate when torque is applied to the flexplate or crankshaft balancer bolt.

    Ensure the timing pin (3) of the EN-52476  Flywheel Holding Tool (2) is installed to the automatic transmission flex plate.

  30. GM5152606

    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.

  31. Tighten the 2 bolts (1, 4) of EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool.
  32. GM5164972
    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 hands from underneath the EN-52461  Cam Phaser Torque Reaction Tool and install the EN-52461 - 1  Holder into the intake camshaft sprocket to hold it securely before installing the camshaft sprocket bolt.

  33. Line up intake camshaft sprocket (1) with alignment marks, as you install them on chain and the housing which should of been done on removal.
  34. GM5164974

    Hold the exhaust camshaft sprocket (1) with hands from underneath the EN-52461  Cam Phaser Torque Reaction Tool and install the EN-52461 - 1  Holder into the exhaust camshaft sprocket to hold it securely before installing the camshaft sprocket bolt.

  35. Line up exhaust camshaft sprocket (1) with alignment marks, as you install them on chain and the housing which should of been done on removal.
  36. GM5285327

    Lubricate the camshaft sprocket bolts (1) with clean engine oil where indicated. Adhesives, Fluids, Lubricants, and Sealers

  37. GM5150021

    Camshaft Sprocket Bolt (1) - Install NEW and hand tighten

  38. GM5185359

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

  39. GM5002079

    Check that the EN-52461 - 1  Holder (1) sits correctly in the hole of the intake camshaft sprocket.

  40. Rotate the EN-52461 - 1  Holder (1) counter clockwise.
  41. While holding the EN-52461 - 1  Holder (1) in the clockwise position to 6 N.m (53 lb in), tighten the bolt (4) just enough to hold the EN-52461 - 1  Holder in place.
    42. CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

  42. Intake Camshaft Sprocket Bolt (2) - Tighten - Fastener Specifications
  43. Check that the EN-52461 - 1  Holder (1) sits correctly in the hole of the exhaust camshaft sprocket.
  44. Rotate the EN-52461 - 1  Holder counter clockwise.
  45. While holding the EN-52461 - 1  Holder (1) in the counter clockwise position to 6 N.m (53 lb in), tighten the bolt (3) just enough to hold the EN-52461 - 1  Holder in place.
  46. Exhaust Camshaft Sprocket Bolt (2) - Tighten - Fastener Specifications
  47. GM5002102

    Bolt (1, 2) - Loosen

  48. Slide the 2 EN-52461 - 1  Holder (3) out of the camshaft sprockets.
  49. GM5002065

    Loosen the 2 bolts (1, 4) of EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool (5).

  50. Remove the EN-52461  Cam Phaser Torque Reaction Tool (5) along with the 2 EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool (2, 3) from the engine.
  51. GM5149274

    Remove the EN-52462 - A  Camshaft Tool (1) by rotating the levers in direction of arrows.

  52. GM5285281

    Loosen and disengage the bolt (2) from EN-52462-A  Camshaft Alignment Tool (1).

  53. EN-52462-A  Camshaft Alignment Tool (1) - Remove
  54. GM5002064

    Clean and apply sealant to the camshaft cover opening plugs (1). Adhesives, Fluids, Lubricants, and Sealers

  55. Camshaft Cover Opening Plug (1) - Install and tighten [2x] - Fastener Specifications
  56. Camshaft Carrier Bolt (2) - Install and tighten - Fastener Specifications
  57. GM5285267

    Wiring Harness (2) - Install

  58. Retainer (1) @ Camshaft Carrier - Install [3x]
  59. Electrical Connector @ Camshaft Carrier - Connect [11x]
  60. GM5300179

    Inspect the inside of the ignition coil boot for a thin, even coat of dielectric grease. If there is no grease present or additional grease is necessary, apply a thin coating of dielectric grease to the inside of the ignition coil boot up to a depth of 15 mm (0.60 in from the end of the boot. Adhesives, Fluids, Lubricants, and Sealers

  61. Remove any excess dielectric grease from around the end of the ignition coil boot and ensure there is not an excessive amount within the boot.
  62. Ignition Coil (2) - Install [4x]
  63. Ignition Coil Bolt (1) - Install and tighten [8x] - Fastener Specifications
  64. Electrical Connector - Connect [2x]
  65. GM5135894

    Positive Crankcase Ventilation Hose Fitting Seal (4) - Install NEW [2x]

  66. Positive Crankcase Ventilation Hose (3) - Install
  67. Retainer (2) - Install
  68. Positive Crankcase Ventilation Hose Connector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  69. Electrical Connector - Connect
  70. GM5135762

    Electrical Connector (1) @ Engine Coolant Temperature Sensor (2) - Install

  71. GM4997073
    NOTE:
    • The timing chain upper cover sealing surface must be free of contamination prior to applying the sealer.
    • Install and align the timing chain upper cover to engine block within 10 minutes of applying the sealer.
    • The timing chain upper cover must be fastened to final torque specification within 15 minutes of applying the sealer.
    • Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant

    Apply a 5 mm (0.2 in) bead of RTV (2) in the middle of both sides between the camshaft housing and the cylinder head T joint. Adhesives, Fluids, Lubricants, and Sealers

  72. Check that the 2 Pins (1) are in the camshaft housing or in the timing chain upper cover.
  73. GM4997066

    Timing Belt Front Upper Cover Seal (1) - Install NEW

  74. Timing Chain Upper Cover (2) - Install
  75. GM4997059

    Timing Chain Upper Cover Bolt-M6 (3) - Install and tighten in sequence - Fastener Specifications

  76. Timing Chain Upper Cover Bolt-M5 (2) - Install and tighten in sequence [11x] - Fastener Specifications
  77. GM5439441

    Camshaft Position Actuator Magnet Gasket (3) - Install NEW

  78. Camshaft Position Actuator Valve Solenoid (2) - Install
  79. Camshaft Position Actuator Valve Solenoid Bolt (1) - Install [2x] - Fastener Specifications
  80. GM5439440

    Camshaft Position Actuator Magnet Gasket (3) - Install NEW

  81. Camshaft Position Actuator Valve Solenoid (2) - Install
  82. Camshaft Position Actuator Valve Solenoid Bolt (1) - Install [2x] - Fastener Specifications
  83. GM5562846

    Engine Wiring Harness (3) - Reposition

  84. Retainer (1) @ Timing Chain Upper Cover (2) - Engage [6x]
  85. Connect the 2 electrical connectors to the camshaft position actuator valve solenoids.
  86. GM4967492

    The EN-52443  High Pressure Fuel Pump Alignment Tool has two ends marked with number 1 (1) and number 2 (2).

  87. GM4967236

    Install the EN-52443  High Pressure Fuel Pump Alignment Tool (2) with the number 2 (1) facing outward to ensure the camshaft lobe is at the base position.

  88. Remove the EN-52443  High Pressure Fuel Pump Alignment Tool (2).
  89. GM4967228

    Lubricate the valve lifter follower (2) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers

  90. Valve Lifter Follower (2) - Install
  91. Fuel Pump Seal (3) - Install NEW
  92. Fuel Pump (1) - Install
    93. CAUTION:

    Alternately hand-tighten the fuel pump bolts one turn at a time until the pump is fully seated. Trying to draw down the pump without even side-to-side tightening may result in pump plunger damage.

  93. Fuel Pump Bolt (4) - Install and tighten [2x] - Fastener Specifications
  94. Connect the fuel pump electrical connector.
  95. GM5314508

    Fuel Feed Intermediate Pipe (2) - Install NEW

  96. Nut @ Fuel Feed Intermediate Pipe (2) - Tighten [2x] - Fastener Specifications
  97. Fuel Injection Fuel Feed Pipe Bolt (1) - Install - Fastener Specifications
  98. GM4967224
    WARNING:

    The noise cancelling foam component MUST be replaced if it has been exposed to engine fluids. Failure to replace the noise cancelling foam component that has been exposed to engine fluids may result in an engine fire resulting in catastrophic engine damage, and possible injury or death.

    Fuel Pump Insulator (1) - Install

  99. GM5403825

    Fuel Feed Pipe (1) @ Fuel Pump - Connect - Metal Collar Quick Connect Fitting Service

  100. Reposition wiring harness as necessary.
  101. GM5422918

    Fuel Pump Cover (2) - Install

  102. Fuel Pump Shield Bolt (1) - Install and tighten [3x] - Fastener Specifications
  103. Reposition wiring harness as necessary.
  104. GM5299671

    Evaporative Emission Canister Purge Pump (2) - Install

  105. Evaporative Emission Canister Purge Pump Bolt (1) - Install and tighten [3x] - Fastener Specifications
  106. GM5439477

    Evaporative Emission Pipe (1) @ Evaporative Emission Canister Purge Pump (2) - Connect - Plastic Collar Quick Connect Fitting Service

  107. Connect the electrical connector.
  108. GM5312610

    Radiator Surge Tank Outlet Pipe (3) - Install

  109. Radiator Surge Tank Inlet Hose Clip (1) @ Radiator Surge Tank Inlet Pipe Bracket - Install
  110. Radiator Surge Tank Inlet Hose Clip (2) @ Radiator Surge Tank Inlet Pipe Bracket - Install
  111. GM5312607

    Radiator Surge Tank Inlet Hose Clip (2) @ Engine Wiring Harness - Install

  112. Radiator Surge Tank Inlet Hose Clip (1) @ Positive Crankcase Ventilation Hose - Install
  113. Radiator Surge Tank Inlet Hose Clip (3) @ Fuel Pump Cover - Install
  114. GM5420763

    Radiator Surge Tank Inlet Hose (2) @ Radiator Surge Tank Outlet Pipe (3) - Install [2x]

  115. Radiator Surge Tank Inlet Hose Clamp (1) @ Radiator Surge Tank Outlet Pipe (3) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  116. Raise and support the vehicle. Lifting and Jacking the Vehicle
  117. 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 flex plate when torque is applied to the flexplate or crankshaft balancer bolt.

    EN-52476  Flywheel Lock and Alignment Tool (2) - Remove

  118. GM5319715

    Starter (3) - Install

  119. Starter Bolt (2) - Install and tighten [2x] - Fastener Specifications
  120. Starter Stud (1) - Install and tighten - Fastener Specifications
  121. GM5460947

    Auxiliary Generator Battery Jumper Cable (2) - Install

  122. Battery Positive Cable Nut (1) @ Starter Solenoid - Install and tighten - Fastener Specifications
  123. GM5460935

    Electrical Connector (1) - Connect

  124. GM5460874

    Auxiliary Generator Battery Jumper Cable (3) - Install

  125. Battery Negative Cable Nut (1) @ Starter Stud - Install and tighten - Fastener Specifications
  126. Engine Wiring Harness Retainer (2) - Engage [2x]
  127. Lower the vehicle.
  128. GM5068106

    Oil Level Indicator Tube Seal (2) - Install NEW

  129. Oil Level Indicator Tube (1) - Install
  130. GM5136547

    Oil Level Indicator Tube Bracket Bolt (2) - Install and tighten - Fastener Specifications

  131. Electrical Connector (1) @ Oil Level Indicator Tube (3) - Clip
  132. GM5335764
  133. Oil Level Indicator (1) - Install
  134. GM5427525

    Install the air cleaner (1) and air cleaner outlet duct (2) as an assembly.

  135. GM5427523

    Air Cleaner Bolt (1) - Install and tighten - Fastener Specifications

  136. Air Cleaner Outlet Duct Clamp (2) - Tighten - Fastener Specifications
  137. GM5427515

    Wiring Harness Retainer (1) @ Air Cleaner Assembly - Install [4x]

  138. Connect the 2 electrical connector (4).
  139. GM5334198

    Positive Crankcase Ventilation Tube (1) - Connect [2x] - Plastic Collar Quick Connect Fitting Service

  140. Retainer (2) - Clip
  141. GM5080707

    Evaporative Emission Canister Purge Tube (2) - Install

  142. Connect the quick disconnects (1) and install the retainer (3). Plastic Collar Quick Connect Fitting Service
  143. GM5137016

    Upper Intake Manifold Bracket (2) - Install

  144. Upper Intake Manifold Cover Nut (1) - Install and tighten [2x] - Fastener Specifications
  145. GM5137013

    Upper Intake Manifold Cover Bracket Bolt (1) @ Upper Intake Manifold Bracket (2) - Install and tighten [2x] - Fastener Specifications

  146. GM5137012

    Wiring Harness (4) - Reposition

  147. Retainer (2) @ Upper Intake Manifold Bracket (3) - Install [3x]
  148. Electrical Connector (1) - Connect [3x]
  149. GM5335089

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

  150. GM5335087
    NOTE:

    Ensure the engine sight shield retainers fully engage the intake manifold cover studs.

    Push down on the front of the intake manifold cover (1) engaging the intake manifold cover retainers to the intake manifold cover studs.

  151. Fill the engine oil to the proper level with NEW engine oil. Engine Oil and Oil Filter Replacement (RWD) , or Engine Oil and Oil Filter Replacement (AWD)
  152. Install the oil fill cap.
  153. Fill the cooling system. 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 (LSY with V03 GE 47716)
  154. Connect the battery. Battery Negative Cable Disconnection and Connection
  155. Perform the throttle body idle air flow compensation reset. Throttle Body Idle Air Flow Compensation Reset
  156. Inspect for fuel leaks using the following procedure:
    1. Turn ON the ignition with the engine OFF for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition with the engine OFF.
    4. Inspect for fuel leaks.
  157. Start the engine and check for coolant leaks.
  158. Perform the engine oil life reset. GM Oil Life System Resetting (With Scan Tool) , or GM Oil Life System Resetting (Without Scan Tool)
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