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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Mechanical - 2.0L (LSY) - Repair Instructions (2 Of 3)) >> Repair Instructions >> Piston and Connecting Rod Removal and Installation >> Installation Procedure

Installation 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. Coat the following components with engine oil:
    • Pistons
    • Connecting rods
    • Cylinder bores
    • Connecting rod bearings
  2. Install the 8 connecting rod bearings to the connecting rod bearing caps and the connecting rods.
  3. GM5027415

    The arrow on the top of the pistons (1) must point to the timing side.

  4. GM5027410
    NOTE:
    • If the old piston and connecting rod will be reused, install to their original position.
    • The arrow on the top of the piston and the marks of the piston and connecting rod, must point to the timing side.
    • The mark (1) must point to the engine intake side.

    Install a piston ring compressor in order to compress the piston rings.

  5. Install the 2 pistons (2) and the 2 connecting rods along (4) with the connecting rod upper bearing to the cylinder 1 and the cylinder 4, using EN-51454  Connecting Rod Guides (3).
  6. GM5027402
    NOTE:
    • If the old connecting rod bearing caps will be reused, install in their original position.
    • The mark (4) must point to the engine intake side.

    Install the 2 connecting rod bearing caps (2) along with the 2 connecting rod lower bearings (1) to the cylinder 1 and the cylinder 4.

    7. CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

  7. Install 4 NEW connecting rod bolts (3) and tighten in two passes. Fastener Specifications
  8. Turn the crankshaft 180 degrees.
  9. GM5027412
    NOTE:
    • If the old piston and connecting rod will be reused, install to their original position.
    • The arrow on the top of the piston and the marks of the piston and connecting rod, must point to the timing side.
    • The mark (1) must point to the engine intake side.

    Install a piston ring compressor in order to compress the piston rings.

  10. Install the 2 pistons (2) and the 2 connecting rods along with the connecting rod upper bearing (4) to the cylinder 2 and the cylinder 3, using EN-51454  Connecting Rod Guides (3).
  11. GM5027404
    NOTE:
    • If the old connecting rod bearing caps will be reused, install to their original position.
    • The mark (3) must point to the engine intake side.

    Install the 2 connecting rod bearing caps (2) along with the 2 connecting rod lower bearings (1) to the cylinder 2 and the cylinder 3.

  12. Install 4 NEW connecting rod bolts (4) and tighten in two passes. Fastener Specifications
  13. Clean all sealing surfaces.
  14. GM5026325
    NOTE:
    • The engine block surface must be free of contamination prior to applying the sealer.
    • Install and align the engine block lower structural extension to the block within 10 minutes of applying the sealer.
    • The oil pan must be fastened to final torque specification within 60 minutes of applying the sealer.

    Apply approximately a 4 mm (0.16 in) thick bead of sealant (2, 3) to the engine block lower structural extension. Finally apply a 12 mm  dab of sealant at the locations indicated (1). Adhesives, Fluids, Lubricants, and Sealers

  15. GM5026210

    Engine Block Lower Structural Extension (1) - Install

  16. GM5026209
    NOTE:

    Take note that there are different bolt lengths.

    Engine Block Lower Structural Extension Inner Bolts (1, 2, 3) - Install and hand tighten [3x]

  17. GM5129462
    NOTE:

    Take note that there are different bolt lengths.

    Engine Block Lower Structural Extension Outer Bolts (1, 2, 3, 4, 5) - Install and hand tighten [15x]

  18. GM5129465

    Engine Block Lower Structural Extension Bolt - Tighten in sequence [18x] - Fastener Specifications

  19. GM5027535

    Rotate the balance shaft (1) approximately 52 degreesin the direction of the arrow.

  20. Hold the balance shaft in that position.
  21. GM5027542

    Install the EN-52441  Balance Shaft Timing Tool (1) through the hole in the oil pump.

  22. GM5027536

    Balance Chain (1) @ Balance Shaft Sprocket (2) - Install - Align the white link marked on the balance chain (4) with the balance shaft sprocket mark (3).

  23. GM5027541

    Balance Chain (5) @ Crankshaft - Install - Align the blue link marked on the balance chain (2) with the mark at the crankshaft (1).

  24. Install the balance shaft sprocket (3) along with the balance chain (5) with the adjusted position to the balance shaft.
    25. NOTE:

    Hold on the balance shaft sprocket (3) with a suitable wrench to tighten the balance shaft sprocket bolt (4).

  25. Balance Shaft Sprocket Bolt (4) - Install NEW and tighten - Fastener Specifications
  26. GM5026863

    Balancer Chain Guide (2) - Install

  27. Balance Chain Guide Bolt (1) - Install and tighten [2x] - Fastener Specifications
  28. GM5026521

    Balancer Chain Tensioner (1) - Install

  29. Bolt (2) - Install and tighten [2x] - Fastener Specifications
  30. GM5026468

    Remove the EN-955-A  Locking Pin (2) from the balance chain tensioner (1).

  31. GM5026522

    Remove the EN-52441  Balance Shaft Timing Tool (1).

  32. GM5026522

    Install the EN-52441  Balance Shaft Timing Tool (1) through the hole in the oil pump.

  33. If the EN-52441  Balance Shaft Timing Tool (1) fits in the hole of the oil pump, the balance shafts are properly adjusted.
  34. If the EN-52441  Balance Shaft Timing Tool (1) does not fit in the hole of the oil pump, repeat the steps to adjust the balance shafts and the balance chain again.
  35. Remove the EN-52441  Balance Shaft Timing Tool (1).
  36. Clean all sealing surfaces.
  37. GM5152485

    Slip the EN-52439 - 3  Crankshaft Oil Seal Ring Guide Rear (2) through the seal from the outside cover to inside 2 times to shape the seal lip in the crankshaft rear oil seal housing (1).

  38. Mark the crankshaft rear oil seal housing with a reference line to the dowel to align the EN-52439 - 1  Crankshaft Oil Seal Ring Guide Rear.
  39. GM5152487

    Install the EN-52439 - 3  Crankshaft Oil Seal Ring Guide Rear (2) through the seal with the EN-52439 - 1  Crankshaft Oil Seal Ring Guide Rear (1) to keep the shape of the seal in the crankshaft rear oil seal housing (3).

  40. Align the EN-52439 - 1  Crankshaft Oil Seal Ring Guide Rear dowel hole to the line previous applied on the new cover.
  41. GM5020811
    NOTE:
    • The crankshaft rear oil seal housing surface must be free of contamination prior to applying the sealer.
    • Install and align the crankshaft rear oil seal housing to the block within 10 minutes after applying the sealer.
    • The crankshaft rear oil seal housing must be fastened to final torque specification within 15 minutes after applying the sealer.

    Set the crankshaft rear oil seal housing on the EN-52439 - 1  Crankshaft Oil Seal Ring Guide Rear (2) to apply approximately a 4 mm (0.16 in) thick bead of sealant (1) to the crankshaft rear oil seal housing. Adhesives, Fluids, Lubricants, and Sealers

  42. GM5020807

    EN-52483  Guide Pins (2) - Install

  43. Crankshaft Rear Oil Seal Housing (1) - Install NEW
  44. EN-52439 - 1  Crankshaft Oil Seal Ring Guide Rear (3).
  45. GM5020817

    Crankshaft Rear Oil Seal Housing Bolt (1) - Install and hand tighten [13x]

  46. Remove the EN-52483  Guide Pins
  47. GM5020822
    NOTE:

    The bolts (1, 2, 3, 5) must be tightening two times.

    Crankshaft Rear Oil Seal Housing Bolt - Tighten in sequence [13x] - Fastener Specifications

  48. Clean all sealing surfaces.
  49. Spray Low LOC brake cleaner on the LCE sealing surface and wipe off with a clean shop towel. Avoided touching the surface after cleaning and air dry with shop air.
  50. Wipe the oil pan surface with the Adhesion Plastic Pan Primer Promoter with a clean shop towel. Allow the cleaner to flash / evaporate. Wipe off the sealing surfaces with a lint free cloth. Do not touch the sealing surface after cleaning to avoid inducing containment debris to the bonding surface area. Adhesives, Fluids, Lubricants, and Sealers
  51. GM5020714

    Apply approximately a 4 mm (0.16 in) thick bead of sealant (1) to the lower oil pan. Adhesives, Fluids, Lubricants, and Sealers

  52. Install EN-52483  Guide Pin in two locations to keep oil pan square.
  53. GM5152988
    NOTE:
    • The engine block lower structural extension surface must be free of contamination prior to applying the sealer.
    • Install and align the oil pan to the block within 10 minutes after applying the sealer.
    • The oil pan must be fastened to final torque specification within 15 minutes after applying the sealer.
    • Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant

    Lower Oil Pan (1) - Install

  54. GM5020716

    Lower Oil Pan Bolt (1) - Install and hand tighten [18x]

  55. Lower Oil Pan Bolt (1) - Tighten in sequence [18x] - Fastener Specifications
  56. GM4994688
    NOTE:
    • Check that the Locating Pin (2) sits correct in the crankshaft.
    • Check that the Locating Pin (2) sits in the proper hole from the crankshaft position sensor inner excitor ring.
    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) - Install

  57. Clean the 8 crankshaft threads.
  58. GM4968259
    NOTE:
    • Check the flex plate for damage before installation.
    • Check the flex plate locating pin for correct seat in the crankshaft.

    Automatic Transmission Flex Plate (1) - Install

  59. Check that flex plate locating pin (2) is in the right hole of the automatic transmission flex plate.
  60. The flex plate locating pin (2) depth should be 5 mm (a)
  61. Automatic Transmission Flex Plate Bolt (3) - Install NEW and hand tighten [8x]
  62. 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.

  63. GM4968262

    Automatic Transmission Flex Plate Bolt (2) - Tighten [8x] - Fastener Specifications

  64. GM5020762

    Crankshaft Position Sensor (1) - Install

  65. Crankshaft Position Sensor Bolt (2) - Install and tighten - Fastener Specifications
  66. Flip engine over on stand.
  67. GM4991419
    NOTE:

    Check that the 2 guide pins are seated correctly in the cylinder head.

    Cylinder Head Gasket (3) - Install NEW

  68. Cylinder Head (2) - Install
  69. Cylinder Head Bolt (1) - Install NEW and hand tighten-(M8) [10x]
  70. GM4991418
    NOTE:

    Ensure the correct bolt length is used in the correct location.

    Cylinder Head Bolt (1, 2, 3) - Install and hand tighten-(M6) [8x]

  71. Cylinder Head Bolt - [18x] Tighten - Fastener Specifications
  72. GM5541642

    Install a NEW turbocharger oil return pipe seal (6).

  73. Install a NEW turbocharger oil feed pipe gasket (7).
  74. Install a NEW the turbocharger heat shield (1).
  75. Install the compressor air intake turbocharger (3).
  76. Install 4 NEW turbocharger bolt (2) and tighten. Fastener Specifications
  77. Install the 2 oil feed pipe bolts (4) and tighten. Fastener Specifications
  78. Install the oil feed pipe bolt (5) and tighten. Fastener Specifications
  79. Clean all sealing surfaces.
  80. GM5149968

    EN-46109  Guide Pins - Install

    81. NOTE:

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

  81. Camshaft Cover Gasket (2) - Install NEW
  82. Camshaft Carrier (1) - Install
  83. EN-46109  Guide Pins - Remove
  84. GM5034489

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

  85. Camshaft Carrier Bolt (2) - Install and tighten in sequence-M6 [4x] - Fastener Specifications
  86. Camshaft Carrier Bolt (3) - Install and tighten in sequence-M8 [4x] - Fastener Specifications
  87. GM5124385

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

  88. Turbocharger Coolant Feed and Return Pipe (1) - Install
  89. GM5124376

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

  90. GM5124375

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

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

    Electrical Connector (1) @ Turbocharger Wastegate Actuator - Connect

  93. Engine Wiring Harness Retainer (2) @ Turbocharger Coolant Feed and Return Pipe - Install [2x]
  94. GM5135656

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

  95. GM5336351

    Engine Wiring Harness Bracket (3) - Install

  96. Engine Wiring Harness Conduit Nut (2) - Install and tighten - Fastener Specifications
  97. Engine Wiring Harness Conduit Bracket Bolt (1) - Install and tighten - Fastener Specifications
  98. GM5336345

    Engine Wiring Harness (2) - Reposition

  99. Retainer (1) - Install [5x]
  100. GM5512539

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

  101. Radiator Surge Tank Outlet Hose Clip Bracket Nut [2x] - Install and tighten [2x] - Fastener Specifications
  102. Install harness retainers as needed.
  103. To set the NEW timing chain tensioner follow next steps if needed.
  104. GM5442502

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

  105. 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.

    106. 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.

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

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

  109. 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.

  110. GM5002077

    Clean the block thread holes with a tap before installation of timing chain tensioner.

  111. Timing Chain Tensioner (2) - Install
  112. Timing Chain Tensioner Bolt (1) - Install and tighten [2x] - Fastener Specifications
  113. GM5002076

    Timing Chain Tensioner Shoe (2) - Install.

    114. NOTE:

    Service may offer bolts without microencapsulated thread locking adhesive. If this is the case, clean the threads and reapply adhesive to the bolts.

  114. Timing Chain Tensioner Shoe Bolt (1) - Install NEW and tighten - Fastener Specifications
  115. GM5002074

    Timing Chain Guide (2) - Install.

  116. Timing Chain Guide Bolt (1) - Install and hand tighten [2x]
  117. GM5002086

    Timing Chain (1) - Install

  118. Timing Chain (1) @ Crankshaft Sprocket @ Timing Chain Upper Guide (2) - Install
    NOTE:

    The colored links (2) on the timing chain are only for identification.

  119. 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.

  120. 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.

  121. Tighten the 2 bolts (1, 4) of EN-52461 - 100  Adapter Cam Phaser Torque Reaction Tool.
  122. 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.

  123. 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.
  124. 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 (1).

  125. 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.
  126. GM5285327

    Lubricate the Camshaft Sprocket Bolts (1) with clean engine oil where indicated. Adhesives, Fluids, Lubricants, and Sealers

  127. GM5150021

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

  128. GM5002079

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

  129. Rotate the EN-52461 - 1  Holder (1) counter clockwise.
  130. While holding the EN-52461 - 1  Holder 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.
  131. Intake Camshaft Sprocket Bolt (2) - Tighten - Fastener Specifications
  132. Check that the EN-52461 - 1  Holder (1) sits correctly in the hole of the exhaust camshaft sprocket.
  133. Rotate the EN-52461 - 1  Holder counter clockwise.
  134. While holding the EN-52461 - 1  Holder 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.
  135. Exhaust Camshaft Sprocket Bolt (2) - Tighten - Fastener Specifications
  136. GM5002102

    Bolt (1, 2) - Loosen

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

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

  139. 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.
  140. GM5442955

    EN-955-10A  Locking Pin (1) - Remove

  141. GM4998009
    NOTE:
    • Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
    • The engine front lower cover sealing surface must be free of contamination prior to applying the sealer.
    • Install and align the engine front lower cover to engine block within 10 minutes of applying the sealer.
    • The engine front lower cover must be fastened to final torque specification within 15 minutes of applying the sealer.

    Apply approximately a 4 mm (0.16 in) thick bead of sealant (1) to the engine front cover. Adhesives, Fluids, Lubricants, and Sealers

  142. Crankshaft Balancer Bolt (1) - Remove and DISCARD
  143. GM5108952

    Install EN-52440  Crankshaft Oil Seal Ring Guide Front (2) to the crankshaft.

  144. Install the engine front cover (1) backwards using the 2 tabs to size the seal.
  145. GM4998004

    Remove the engine front cover (1) after seal is sized.

  146. Install - EN-52483  Guide Pins (2)
  147. Engine Front Cover (1) - Install
  148. Remove EN-52440  Crankshaft Oil Seal Ring Guide Front (2).
  149. GM4997994

    Engine Front Cover Bolt (1) - Install and hand tighten [9x]

  150. Remove the EN-52483  Guide Pins (3).
  151. Engine Front Cover Bolt (1) - Tighten in sequence [9x] - Fastener Specifications
  152. GM5149274

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

  153. 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.

    Retract the timing pin (3) using the handle (1) of the EN-52476  Flywheel Lock and Alignment Tool (2).

  154. Ensure to engage the slide (4) of the EN-52476  Flywheel Lock and Alignment Tool (2) into the automatic transmission flexplate.
  155. GM4998850

    Crankshaft Balancer (2) - Install

  156. Crankshaft Balancer Bolt (1) - Install NEW and tighten - Fastener Specifications
  157. GM5285281

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

  158. EN-52462-A  Camshaft Alignment Tool (1) - Remove
  159. Camshaft Carrier Bolt - Install and tighten - Fastener Specifications
  160. GM5002064

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

  161. Camshaft Cover Opening Plug (1) - Install and tighten [2x] - Fastener Specifications
  162. Camshaft Carrier Bolt (2) - Install and tighten - Fastener Specifications
  163. 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 approximately a 5 mm (0.2 in) thick bead of sealant (2) on both sides between the camshaft housing and the cylinder head. Adhesives, Fluids, Lubricants, and Sealers .

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

    Timing Chain Upper Cover Seal (1) - Install NEW

  166. Timing Chain Upper Cover (2) - Install
  167. GM4997059

    Timing Chain Upper Cover BoltM6 (3) - Install and tighten in sequence - Fastener Specifications

  168. Timing Chain Upper Cover Bolt M5 (2) - Install and tighten in sequence [11x] - Fastener Specifications
  169. GM4996987

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

  170. Camshaft Position Actuator Solenoid Valve Solenoid (1, 3) - Install [2x]
  171. Camshaft Position Actuator Valve Solenoid Bolt (4) - Install and tighten [4x] - Fastener Specifications
  172. GM4967492

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

  173. 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.

  174. Remove the EN-52443  High Pressure Fuel Pump Alignment Tool (1).
  175. GM4967228

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

  176. Valve Lifter Follower (2) - Install
  177. Fuel Pump Seal (3) - Install NEW
  178. Fuel Pump (1) - Install
    179. 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.

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

    Fuel Feed Intermediate Pipe (2) - Install NEW

  182. Nut @ Fuel Feed Intermediate Pipe (2) - Tighten [2x] - Fastener Specifications
  183. Fuel Injection Fuel Feed Pipe Bolt (1) - Install - Fastener Specifications
  184. 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

  185. GM5422918

    Fuel Pump Cover (2) - Install

  186. Fuel Pump Shield Bolt (1) - Install and tighten [3x] - Fastener Specifications
  187. GM4966911

    Engine Coolant Flow Control Valve Gasket (2) - Install NEW

  188. Engine Coolant Flow Control Valve (1) - Install
  189. GM4966906

    Engine Coolant Flow Control Valve Bolt (1) - Install and tighten [4x] - Fastener Specifications

  190. GM5541656

    Install a NEW intake manifold seal (1).

  191. Install the intake manifold and throttle body as and assembly (2).
  192. Intake Manifold Bolt (3) - Install and tighten [7x] - Fastener Specifications
  193. GM5068210

    Evaporative Emission Canister Purge Pump (2) - Install

  194. Evaporative Emission Canister Purge Pump Bolt (1, 3) - Install and tighten [3x] - Fastener Specifications
  195. Wiring Harness Clip (4) @ Evaporative Emission Canister Purge Pump Bracket - Clip
  196. GM4962739

    Turbocharger Oil Feed Pipe Gasket (2) - Install NEW

  197. Engine Coolant Air Bleed Pipe (1) - Install
  198. GM4962736

    Engine Coolant Air Bleed Pipe Bolt (1) - Install and tighten [2x] - Fastener Specifications

  199. GM4962732

    Engine Coolant Air Bleed Pipe (2) @ Engine Coolant Flow Control Valve (3) - Install

  200. Clamp (4) - Install - Hose Clamp Replacement Guidelines - Spring Type
  201. Engine Coolant Air Bleed Pipe Bolt (1) - Install and tighten - Fastener Specifications
  202. GM5069155

    Engine Coolant Manifold Gasket (2) - Install NEW

  203. Engine Coolant Heater Exhaust Pipe (1) - Install
  204. GM5069147

    Engine Coolant Heater Exhaust Pipe Bolt (3, 4) - Install [3x]

  205. Connect the electrical connector:(1)
  206. Reposition the sleeve (2).
  207. GM4962310

    Clamp (1) - Install - Hose Clamp Replacement Guidelines - Spring Type

  208. Engine Coolant Heater Exhaust Pipe Bracket Bolt (2) - Install and tighten - Fastener Specifications
  209. GM5129535

    Thermostat Bypass Pipe (1) - Install

  210. Thermostat Bypass Pipe Bolt (2) - Install and tighten [2x] - Fastener Specifications
  211. GM5124385

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

  212. Turbocharger Coolant Feed and Return Pipe (1) - Install
  213. GM5124376

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

  214. GM5124375

    Turbocharger Coolant Feed Hose Clamp (2) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type

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

    Engine Wiring Harness Retainer (2) @ Turbocharger Coolant Feed and Return Pipe - Install [2x]

  217. Electrical Connector (1) @ Turbocharger Wastegate Actuator - Connect
  218. GM5135656

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

  219. GM5336351

    Engine Wiring Harness Bracket (3) - Install

  220. Engine Wiring Harness Conduit Nut (2) - Install and tighten - Fastener Specifications
  221. Engine Wiring Harness Conduit Bracket Bolt (1) - Install and tighten - Fastener Specifications
  222. GM5336345

    Engine Wiring Harness (2) - Reposition

  223. Retainer (1) - Clip [5x]
  224. GM5512539

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

  225. Radiator Surge Tank Outlet Hose Clip Bracket Nut - Install and tighten [2x] - Fastener Specifications
  226. Connect harness retainers as needed.
  227. GM4961570

    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, continue with the next step.

  228. 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
  229. 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.
  230. Ignition Coil (2) - Install [4x]
  231. Ignition Coil Bolt (1) - Install and tighten [8x] - Fastener Specifications
  232. Engine - Install - Engine Replacement (RWD) , or Engine Replacement (AWD)
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