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Home >> Chevrolet >> 2021 >> Tahoe Z71 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions (3 Of 11) >> Repair Instructions >> Camshaft Replacement (L84, 2WD with RC1) >> Installation Procedure

Installation Procedure

  1. Remove the M10-1.5 x 120mm (3) and the M10-1.5 x 45mm (2) bolts.
    GM5591309Courtesy of GENERAL MOTORS COMPANY
  2. Remove the EN-42386  Flywheel Holding Tool (1).
  3. Camshaft (1) - Install
    GM5621025Courtesy of GENERAL MOTORS COMPANY
  4. Camshaft Retainer (1) - Install
    GM5621027Courtesy of GENERAL MOTORS COMPANY
  5. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  6. Camshaft Retainer Bolt (2) - Install and hand tighten [4x]
    7. CAUTION:

    Refer to Fastener Caution .

  7. Camshaft Retainer Bolt (2) - Tighten in sequence [4x] - Fastener Specifications
  8. Lubricate the valve lifters (1), valve lifter guides (2) and the engine block valve lifter bores with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers , Adhesives, Fluids, Lubricants, and Sealers
    GM5587689Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • When reusing valve lifters (1), ensure the lifters to their original locations.
    • Only replace the valve lifters (1) and valve lifter guides (2) as required.
    • If camshaft replacement is required, the valve lifters (1) must also be replaced.
  9. Install the raised surface of the valve lifter (1) into the notched area of the valve lifter guide (2).
  10. Install the valve lifter guide (2) and the valve lifters (3) as an assembly.
    GM5587687Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The notched area of the valve lifter guides (2) align with the locating tab on the engine block.

  11. Valve Lifter Guide Bolt- Left Side (1) - Install and tighten [2x] - Fastener Specifications
  12. Lubricate the valve lifters (1), valve lifter guides (2) and the engine block valve lifter bores with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    GM5587689Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • When reusing valve lifters (1), install the lifters to their original locations.
    • Only replace the valve lifters (1) and the valve lifter guides (2) as required.
    • If camshaft replacement is required, the valve lifters (1) must also be replaced
  13. Install the raised surface of the valve lifter (1) into the notched area of the valve lifter guide (2).
  14. Install the valve lifter guide (2) and the valve lifters (1) as an assembly.
    GM5588248Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The notched area of the valve lifter guides (2) align with the locating tab on the engine block.

  15. Valve Lifter Guide Bolt- Right Side (3) - Install and tighten [2x] - Fastener Specifications
  16. Valve Lifter Follower (3) - Install
    GM5567786Courtesy of GENERAL MOTORS COMPANY
  17. Valve Lifter Follower Guide (2) - Install
  18. Valve Lifter Follower Guide Bolt (1) - Install and tighten - Fastener Specifications
  19. Crankshaft Sprocket (1) @Crankshaft - Install
    GM5608780Courtesy of GENERAL MOTORS COMPANY
  20. Rotate the crankshaft sprocket until the sprocket alignment mark (1) is in the 12 o'clock position.
    GM5608803Courtesy of GENERAL MOTORS COMPANY
  21. Timing Chain Tensioner (1) - Install
    GM5608823Courtesy of GENERAL MOTORS COMPANY
  22. Timing Chain Tensioner Bolt (2) - Install and hand tighten
  23. Remove and DISCARD the tie strap from the actuator.
  24. The camshaft sprocket alignment mark (1) and the crankshaft sprocket alignment mark (2) must be aligned properly.
    GM5608828Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The alignment mark on the camshaft position actuator (2) and the alignment mark on the crankshaft sprocket (1) are off-center from the oil pump feed hole gasket on the timing chain tensioner. The alignment marks need to be lined up with one another, but NOT with the oil feed hole.

  25. If the alignment marks on the camshaft position actuator (1) and crankshaft sprocket (2) are difficult to see or line up, an alternate method can be used. Mark the gear tooth directly opposite of the alignment mark on the camshaft position actuator. Mark the gear tooth directly opposite of the alignment mark on the crankshaft sprocket.
    GM5608832Courtesy of GENERAL MOTORS COMPANY
  26. The timing chain has 30 links. Place links (1) and (30) on either side of the mark made on the camshaft position actuator and place links (15) and (16) on either side of the mark made on the crankshaft sprocket. This will ensure that the factory alignment marks are in the correct position and that the engine is properly timed.
    GM5608838Courtesy of GENERAL MOTORS COMPANY
  27. Identify the alignment hole (1) in the rear face of the camshaft position actuator and the locating pin (2) on the front face of the camshaft.
    GM5608839Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • Properly locate the camshaft position actuator (1) onto the locating pin of the camshaft (2).
    • The sprocket teeth and timing chain must mesh.
    • The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.
    • Do not use the camshaft position solenoid valve again. Install a NEW valve during assembly.
  28. Install the camshaft position actuator (3) and timing chain (1). Align the hole in the rear face of the camshaft position actuator with the locating pin on the front face of the camshaft. If necessary, rotate the camshaft or crankshaft sprockets (2) in order to align the timing marks. Use care to install the actuator (3) completely onto the front of the camshaft. Position fingers onto the face of the actuator sprocket and push the actuator onto the front of the camshaft. Never push on the reluctor wheel when attempting to install the actuator.
    GM5608758Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Camshaft Position Actuator Removal and Installation Warning .

    29. NOTE:

    Never push on the reluctor wheel when attempting to install the actuator.

  29. Position fingers onto the face of the actuator sprocket (2) and push the actuator onto the front of the camshaft.
  30. Position the EN-42386  Flywheel Holding Tool (1) into place.
    GM5591309Courtesy of GENERAL MOTORS COMPANY
  31. Install the M10-1.5 x 120mm (3) and M10-1.5 x 45mm (2) bolts and tighten to 50 N.m (37 lb ft).
  32. Camshaft Position Actuator Solenoid Valve (1) - Install NEW and tighten - Fastener Specifications
    GM5608754Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

    CAUTION:

    Refer to Component Fastener Tightening Caution .

  33. Locate a straight edge (1) across the front face of the engine block (2) and inspect for proper installation of the camshaft position actuator and timing chain (3). With the camshaft position actuator properly and completely installed onto the front of camshaft, the timing chain (3) will not protrude beyond the front face of engine block (2).
    GM5608844Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    It is possible to push the camshaft rearward when installing the camshaft position actuator solenoid valve. Verify that the camshaft lobes are centered in the valve lifter bores after the camshaft position actuator is installed.

  34. Inspect the sprockets (1, 2) for proper alignment. The mark on the camshaft position actuator sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.
    GM5608828Courtesy of GENERAL MOTORS COMPANY
  35. Timing Chain Tensioner Bolt (1) - Install and hand tighten
    GM5608845Courtesy of GENERAL MOTORS COMPANY
  36. Timing Chain Tensioner Bolt (1) - Tighten [2x] - Fastener Specifications
    GM5608851Courtesy of GENERAL MOTORS COMPANY
  37. Remove the EN-46330  Timing Belt Tensioner Retaining Pin (1) from the timing chain tensioner (2).
    GM5608752Courtesy of GENERAL MOTORS COMPANY
  38. Oil Pump (1) - Install
    GM5617529Courtesy of GENERAL MOTORS COMPANY
  39. Oil Pump Bolt (1) - Install and hand tighten [4x]
    GM5617530Courtesy of GENERAL MOTORS COMPANY
  40. Oil Pump Bolt (1) - Tighten in sequence [4x] - Fastener Specifications
  41. Apply a 3 mm (0.118 in) bead of RTV sealant on the engine front cover (1). Adhesives, Fluids, Lubricants, and Sealers
    GM5590062Courtesy of GENERAL MOTORS COMPANY
    NOTE:
  42. Apply a 5 mm (0.197 in) bead of RTV sealant on the engine front cover (2). Adhesives, Fluids, Lubricants, and Sealers
  43. Engine Front Cover (2) - Install
    GM5615528Courtesy of GENERAL MOTORS COMPANY
  44. Engine Front Cover Bolt (1, 3) - Install and hand tighten [10x]
  45. Engine Front Cover Bolt (1, 3) - Tighten in sequence [10x] - Fastener Specifications
  46. If the engine front cover is reused perform the following steps:
    GM5607186Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    If the engine front cover is reused, the crankshaft front oil seal must be replaced.

      NOTE:
      • For proper orientation, note the installation direction of the crankshaft front oil seal (3). The crankshaft front oil seal is a reverse-lip design. Install with "THIS SIDE OUT" displayed as shown.
      • Do NOT lubricate the crankshaft front oil seal sealing surface.
    1. Install the crankshaft front oil seal (3) with "THIS SIDE OUT" facing away from the engine.
    2. Install the NEW crankshaft front oil seal (3) to the EN-51091  Crankshaft Front Oil Seal Installer (2).
    3. Install the EN-41478-A  Crankshaft Front Oil Seal Installer (1) and the EN-51091  Crankshaft Front Oil Seal Installer (2) into the crankshaft.
    4. Rotate the EN-51091  Crankshaft Front Oil Seal Installer (2) clockwise until the NEW crankshaft front oil seal (3) enters the engine front cover and seats into the bottom of the engine front cover.
    5. Remove the EN-41478-A  Crankshaft Front Oil Seal Installer (1) and the EN-51091  Crankshaft Front Oil Seal Installer (2) from the crankshaft and engine front cover.
    6. Inspect the crankshaft front oil seal (3) for proper installation. The oil seal should be installed evenly and completely into the engine front cover.
  47. Apply a 3 mm (0.118 in) bead of RTV sealant on the oil pan (1). Adhesives, Fluids, Lubricants, and Sealers
    GM5570478Courtesy of GENERAL MOTORS COMPANY
  48. Apply a 5 mm (0.197 in) bead of RTV sealant on the oil pan (2). Adhesives, Fluids, Lubricants, and Sealers
  49. Oil Pan High Pressure Port Seal (2) - Install NEW [2x]
    GM5577840Courtesy of GENERAL MOTORS COMPANY
  50. Oil Pan Front Seal (3) - Install NEW
  51. Oil Pan (1) - Install
    GM5569924Courtesy of GENERAL MOTORS COMPANY
  52. Oil Pan Bolt (2, 3) - Install and hand tighten [16x]
  53. Oil Pan Bolt (2, 3) - Tighten in sequence [16x] - Fastener Specifications
  54. Electrical Connector (1) - Connect
    GM5589667Courtesy of GENERAL MOTORS COMPANY
  55. Engine Wiring Harness (3) - Install
    GM5644061Courtesy of GENERAL MOTORS COMPANY
  56. Engine Wiring Harness Retainer (2) - Install
  57. Engine Wiring Harness Ground Stud (1) - Install and tighten [2x] - Ground Repair
  58. Install and tighten the transmission fluid auxiliary cooler pipe bracket nut (1). Fastener Specifications
    GM5504569Courtesy of GENERAL MOTORS COMPANY
  59. Transmission Fluid Cooler Pipe Clip Bracket (2) @Oil Pan - Install
    GM5644122Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Components removed in graphic to better illustrate service parts.

  60. Transmission Fluid Cooler Pipe Clip Bolt (1) @Oil Pan - Install and tighten - Fastener Specifications
  61. Transmission Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5760502Courtesy of GENERAL MOTORS COMPANY
  62. Crankshaft Balancer (1) - Loosely install
    GM5584621Courtesy of GENERAL MOTORS COMPANY
  63. Install the EN-41478-A  Crankshaft Front Oil Seal Installer (3) and the EN-41665-A  Crankshaft Balancer and Sprocket Installer (2) to the crankshaft.
    GM5584620Courtesy of GENERAL MOTORS COMPANY
  64. Using the EN-41665-A  Crankshaft Balancer and Sprocket Installer (2), properly seat the crankshaft balancer (1).
  65. Remove the EN-41478-A  Crankshaft Front Oil Seal Installer (3) and the EN-41665-A  Crankshaft Balancer and Sprocket Installer (2).
  66. Crankshaft Balancer Bolt (1) - Install NEW and tighten - Fastener Specifications
    GM5644180Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  67. Electrical Connector@Knock Sensor (4) - Connect
    GM5538525Courtesy of GENERAL MOTORS COMPANY
  68. Oil Filter (1) - Install and tighten - Fastener Specifications
    GM5604735Courtesy of GENERAL MOTORS COMPANY
  69. Engine Oil Cooler Hose Bracket Nut (1) - Install and tighten - Fastener Specifications
    GM4997286Courtesy of GENERAL MOTORS COMPANY
  70. Engine Oil Cooler Gasket (2) - Install NEW
    GM5582330Courtesy of GENERAL MOTORS COMPANY
  71. Engine Oil Cooler Hose (1) @Oil Pan - Install
  72. Engine Oil Cooler Adapter Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5582326Courtesy of GENERAL MOTORS COMPANY
  73. Electrical Connector (1) @Engine Oil Pressure Sensor - Connect
    GM5582300Courtesy of GENERAL MOTORS COMPANY
  74. Wiring Harness Retainer (2) @Engine Oil Cooler Hose - Install
  75. Engine Oil Pressure Sensor Sleeve (1) - Install
    GM4997823Courtesy of GENERAL MOTORS COMPANY
  76. Lubricate the oil level indicator seal (2) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    GM5535978Courtesy of GENERAL MOTORS COMPANY
  77. Oil Level Indicator Seal (2) - Install NEW
  78. Oil Level Indicator Tube (1) @Oil Pan - Install
  79. Connect the wiring harness connectors (3) and retainers as needed.
    GM5535977Courtesy of GENERAL MOTORS COMPANY
  80. Engine Wiring Harness Retainer (1) @Oil Level Indicator Tube (2) - Connect
  81. Remove the M10-1.5 x 120mm (3) and M10-1.5 x 45mm (2) bolts.
    GM5591309Courtesy of GENERAL MOTORS COMPANY
  82. Remove the EN-42386  Flywheel Holding Tool (2)
  83. Torque Converter Cover- Right Side (2) - Install
    GM5585543Courtesy of GENERAL MOTORS COMPANY
  84. Torque Converter Cover Bolt- Right Side (1) - Install and tighten - Fastener Specifications
  85. Torque Converter Cover- Left Side (2) - Install
    GM5585541Courtesy of GENERAL MOTORS COMPANY
  86. Torque Converter Cover Bolt- Left Side (1) - Install and tighten - Fastener Specifications
  87. Starter (1) - Install
    GM5569910Courtesy of GENERAL MOTORS COMPANY
  88. Electrical Connector (3) - Connect
    GM5569840Courtesy of GENERAL MOTORS COMPANY
  89. Protective Sleeve (4) - Install
  90. Starter Solenoid Cable (1) - Install
  91. Starter Solenoid Cable Nut (2) - Install and tighten - Fastener Specifications
  92. Starter Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5569758Courtesy of GENERAL MOTORS COMPANY
  93. Starter Solenoid Cable (2) - Install
    GM5569769Courtesy of GENERAL MOTORS COMPANY
  94. Battery Negative Cable Ground Bolt (1) - Install and tighten - Fastener Specifications
  95. Starter Heat Shield (2) - Install
    GM5569721Courtesy of GENERAL MOTORS COMPANY
  96. Starter Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  97. Starter Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5569719Courtesy of GENERAL MOTORS COMPANY
  98. Drivetrain and Front Suspension Frame Front Crossmember (1) - Install
    GM5651698Courtesy of GENERAL MOTORS COMPANY
  99. Drivetrain and Front Suspension Frame Reinforcement Bolt (2) - Install [4x]
    GM5651694Courtesy of GENERAL MOTORS COMPANY
  100. Drivetrain and Front Suspension Frame Reinforcement Nut (1) - Install and tighten [4x] - Fastener Specifications
  101. Install the heater coolant pump and heater water auxiliary pump bracket (2) as assembly.
    GM5620579Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  102. Heater Water Auxiliary Pump Bolt (1) - Install and tighten - Fastener Specifications
  103. Electrical Connector@Heater Coolant Pump (2) - Connect
    GM5591026Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Support the front stabilizer shaft (3).

  104. Front Stabilizer Shaft (3) - Install
  105. Front Stabilizer Shaft Clamp (2) - Install [2x]
  106. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  107. Front Stabilizer Shaft Bolt (1) - Install and tighten [4x] - Fastener Specifications
  108. Wiring Harness Connector Seal (1) @Valve Rocker Arm Oil Control Valve Harness (2) - Install NEW
    GM5567753Courtesy of GENERAL MOTORS COMPANY
  109. Engine Block Valley Cover Gasket (2) @Engine Block Valley Cover (1) - Install NEW
    GM5567750Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    All gasket surfaces should be free of oil or other foreign material during assembly.

  110. Engine Block Valley Cover (1) - Install
    GM5567748Courtesy of GENERAL MOTORS COMPANY
  111. Engine Block Valley Cover Bolt (2) - Hand tighten [9x]
  112. Engine Block Valley Cover Bolt (2) - Tighten in sequence [9x] - Fastener Specifications
  113. Valve Rocker Arm Oil Control Valve Extension Harness (1) @Valve Rocker Arm Oil Control Valve Harness - Connect
    GM5567747Courtesy of GENERAL MOTORS COMPANY
  114. Ensure the 2 plastic fastener retainers (3) are installed in the fuel pump mounting holes before installing the fuel pump.
    GM5568498Courtesy of GENERAL MOTORS COMPANY
  115. Fuel Pump Bracket Gasket (5) - Install NEW
  116. Fuel Pump (4) - Install
  117. Fuel Pump Cover (2) - Install
    118. 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.

  118. Fuel Pump Bolt (1) - Install and hand tighten [2x]
  119. Fuel Pump Bolt (1) - Tighten [2x] - Fastener Specifications
  120. Install the fuel pump and fuel injector wiring harness and connect as necessary.
  121. Cylinder Head Gasket- Left Side (1) - Install NEW
    GM5582380Courtesy of GENERAL MOTORS COMPANY
  122. Cylinder Head- Left Side (2) - Install
  123. Cylinder Head Bolt M12 x 134 (2) - Install NEW and hand tighten [9x]
    GM5582379Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  124. Cylinder Head Bolt M12 x 102 (1) - Install NEW and hand tighten
  125. Cylinder Head Bolt (1, 2) - Tighten in sequence [10x] - Fastener Specifications
  126. Install the fuel pump and fuel injection fuel rail wiring harness and connect as necessary.
  127. Engine Wiring Harness (2) - Install
    GM5582297Courtesy of GENERAL MOTORS COMPANY
  128. Engine Wiring Harness Ground Bolt (1) - Install and tighten - Fastener Specifications
  129. Lubricate the flange of the 8 valve rocker arm bolts with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    GM5569419Courtesy of GENERAL MOTORS COMPANY
  130. Lubricate the 8 valve rocker arms and push rods (1) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    131. NOTE:
    • When using the valve train components again, always install the components to the original location and position.
    • Valve lash is net build. No valve adjustment is required.
    • Ensure the valve push rods (1) seat properly to the valve lifter sockets.
    • The rocker arm bolts are not serviced separately.
    • DO NOT tighten the rocker arm bolts at this time.
  131. Valve Push Rod- Left Side (1) - Install [8x]
  132. Valve Rocker Arm (1) - Install [8x]
    GM5569335Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The valve rocker arm support bolts (2) are not serviced separately.

  133. Valve Rocker Arm Pivot Support Bolt (2) - Hand tighten [8x]
  134. Valve Rocker Arm Pivot Support Bolt (2) - Tighten [8x] - Fastener Specifications
  135. Valve Rocker Arm Cover Gasket- Left Side (2) @Valve Rocker Arm Cover (1) - Install NEW
    GM5549498Courtesy of GENERAL MOTORS COMPANY
  136. Valve Rocker Arm Cover- Left Side (2) - Install
    GM5549496Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  137. Valve Rocker Arm Cover Bolt (1) - Hand tighten [9x]
  138. Valve Rocker Arm Cover Bolt (1) - Tighten in sequence [9x] - Fastener Specifications
    GM5549496Courtesy of GENERAL MOTORS COMPANY
  139. Engine Wiring Harness Connector@Ignition Coil - Connect [4x]
  140. Cylinder Head Gasket- Right Side (2) - Install NEW
    GM5584910Courtesy of GENERAL MOTORS COMPANY
  141. Cylinder Head- Right Side (1) - Install
  142. Cylinder Head Bolt- Right Side (1) - Install NEW and hand tighten [10x]
    GM5584908Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  143. Cylinder Head Bolt- Right Side (1) - Tighten in sequence [10x] - Fastener Specifications
  144. Connect the electrical wiring harness connectors to the bank 2 fuel injection fuel rail.
  145. Engine Wiring Harness (2) @Cylinder Head - Connect
    GM5584907Courtesy of GENERAL MOTORS COMPANY
  146. Engine Wiring Harness Ground Bolt (1) - Install and tighten - Fastener Specifications
  147. Lubricate the flange of the 8 valve rocker arm bolts with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    GM5569717Courtesy of GENERAL MOTORS COMPANY
  148. Lubricate the 8 valve rocker arms and push rods (1) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    149. NOTE:
    • When using the valve train components again, always install the components to the original location and position.
    • Valve lash is net build. No valve adjustment is required.
    • Ensure the valve push rods (1) seat properly to the valve lifter sockets.
    • The rocker arm bolts are not serviced separately.
    • DO NOT tighten the rocker arm bolts at this time.
  149. Valve Push Rod- Right Side (1) - Install [8x]
  150. Valve Rocker Arm (2) - Install [8x]
    GM5569716Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The valve rocker arm support bolts (1) are not serviced separately.

  151. Valve Rocker Arm Pivot Support Bolt (1) - Hand tighten [8x]
  152. Valve Rocker Arm Pivot Support Bolt (1) - Tighten [8x] - Fastener Specifications
  153. Valve Rocker Arm Cover Gasket (2) @Valve Rocker Arm Cover (1) - Install NEW
    GM5549964Courtesy of GENERAL MOTORS COMPANY
  154. Valve Rocker Arm Cover- Right Side (2) - Install
    GM5549960Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  155. Valve Rocker Arm Cover Bolt (1) - Hand tighten [10x]
  156. Valve Rocker Arm Cover Bolt (1) - Tighten in sequence [10x] - Fastener Specifications
  157. Engine Wiring Harness Connector@Ignition Coil - Connect [4x]
  158. Heater Inlet and Outlet Hose Bracket (2) - Install
    GM5549959Courtesy of GENERAL MOTORS COMPANY
  159. Heater Hose Clip Bracket Bolt (1) - Install and tighten - Fastener Specifications
  160. Fuel Feed Intermediate Pipe (1) - Install NEW
    GM5614523Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT reuse the fuel feed intermediate pipe (1). If the 2 fuel feed intermediate pipe nuts (3) are loosened or the fuel feed intermediate pipes are removed, the fuel feed intermediate pipes MUST be replaced.

    1. Slide the 2 fuel feed intermediate pipe nuts (3) back along fuel feed intermediate pipe (1) to reveal the 2 formed ends (2) of the fuel feed intermediate pipe (1).
    2. Carefully install the 2 formed ends (2) of the fuel feed intermediate pipe (1) into the sockets of the left and right fuel injection fuel rail. Take care not to hit the 2 formed ends (2) of the fuel feed intermediate pipe (1) on the threaded sockets on the fuel injection fuel rails.
    3. Hold the fuel feed intermediate pipe (1) firmly in place and hand tighten the 2 fuel feed intermediate pipe nuts (3).
  161. Fuel Feed Pipe Bolt (4) - Tighten - Fastener Specifications
  162. Fuel Feed Intermediate Pipe Nut (3) - Tighten [2x] - Fastener Specifications
  163. Fuel Feed Intermediate Pipe (1) - Install NEW
    GM5608922Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT reuse the fuel feed intermediate pipe (1). If the 2 fuel feed intermediate pipe nuts (2) are loosened or the fuel feed intermediate pipes are removed, the fuel feed intermediate pipes MUST be replaced.

    1. Slide the 2 fuel feed intermediate pipe nuts (2) back along fuel feed intermediate pipe (1) to reveal the 2 formed ends (3) of the fuel feed intermediate pipe (1).
    2. Carefully install the 2 formed ends (3) of the fuel feed intermediate pipe (1) into the sockets of the fuel pump (4) and the fuel feed intermediate pipe (5). Take care not to hit the 2 formed ends (3) of the fuel feed intermediate pipe (1) on the threaded sockets of the fuel pump (4) and fuel feed intermediate pipe (5).
    3. Hold the fuel feed intermediate pipe (1) firmly in place and hand tighten the 2 fuel feed intermediate pipe nuts (2).
  164. Fuel Feed Intermediate Pipe Nut (2) - Tighten [2x] - Fastener Specifications
  165. Fuel Feed Pipe (2) - Install
    GM5569057Courtesy of GENERAL MOTORS COMPANY
  166. Fuel Feed Pipe (2) - Connect - Metal Collar Quick Connect Fitting Service
  167. Fuel Feed Pipe Bolt (1) @Fuel Feed Pipe (2) - Install and tighten - Fastener Specifications
  168. Fuel Feed Pipe (1) - Install
    GM5569054Courtesy of GENERAL MOTORS COMPANY
  169. Fuel Feed Pipe (1) - Connect - Metal Collar Quick Connect Fitting Service
  170. Connect the electrical wiring harness connectors from the fuel rails.
  171. Fuel Pump Insulator (1) - Install
    GM5557530Courtesy of GENERAL MOTORS COMPANY
    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.

  172. Engine Wiring Harness - Install
  173. Engine Wiring Harness Bracket Bolt (1) - Install and hand tighten
    GM5581818Courtesy of GENERAL MOTORS COMPANY
  174. Wiring Harness Retainer (1) - Install
    GM5581817Courtesy of GENERAL MOTORS COMPANY
  175. Engine Wiring Harness Bolt (1) - Install and hand tighten [2x]
    GM5581814Courtesy of GENERAL MOTORS COMPANY
  176. Engine Wiring Harness Bolt (1) - Tighten [2x] - Fastener Specifications
  177. Remove the covers from the cylinder head passages.
  178. Intake Manifold Gasket (1) - Install NEW [8x]
    GM5541471Courtesy of GENERAL MOTORS COMPANY
  179. Clean all sealing surfaces.
    GM5540978Courtesy of GENERAL MOTORS COMPANY
  180. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
    181. NOTE:

    The aid of an assistant may be helpful in holding the engine harness up out of the way so the upper intake manifold cover does not get caught against the engine harness.

  181. Position the intake manifold and Intake manifold cover (1) to install harness retainers.
  182. Engine Wiring Harness Retainer (1) @Intake Manifold Cover (2) - Install [4x]
    GM5540975Courtesy of GENERAL MOTORS COMPANY
  183. Move the intake manifold and intake manifold cover (2) into place.
  184. Intake Manifold Bolt (1) - Hand tighten [10x]
    GM5540977Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  185. Intake Manifold Bolt (1) - Tighten in sequence [10x] - Fastener Specifications
  186. Engine Wiring Harness Retainer (1) @Intake Manifold Cover (2) - Install [3x]
    GM5540974Courtesy of GENERAL MOTORS COMPANY
  187. Engine Wiring Harness Retainer (1) @Intake Manifold Cover (2) - Install [4x]
    GM5540973Courtesy of GENERAL MOTORS COMPANY
  188. Engine Wiring Harness Connector (4) @Evaporative Emission Canister Purge Solenoid Valve - Connect
    GM5540971Courtesy of GENERAL MOTORS COMPANY
  189. Engine Wiring Harness Connector (3) @Manifold Absolute Pressure Sensor - Connect
  190. Engine Wiring Harness Retainer (2) @Intake Manifold Cover - Install [2x]
  191. Engine Wiring Harness Connector (1) @Throttle Body - Connect
  192. Evaporative Emission Canister Purge Tube (2) @Evaporative Emission Canister Purge Solenoid Valve - Install
    GM5538400Courtesy of GENERAL MOTORS COMPANY
  193. Evaporative Emission Canister Purge Tube Connector (1) @Evaporative Emission Canister Purge Solenoid Valve - Engage - Plastic Collar Quick Connect Fitting Service
  194. Plenum Front Panel Outer Reinforcement (1) - Install - Plenum Front Panel Outer Reinforcement Removal and Installation
    GM5571687Courtesy of GENERAL MOTORS COMPANY
  195. Positive Crankcase Ventilation Foul Air Tube (3) - Install
    GM5527888Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  196. Positive Crankcase Ventilation Tube Connector (2) @Intake Manifold - Connect - Plastic Collar Quick Connect Fitting Service
  197. Positive Crankcase Ventilation Tube Connector (1) @Positive Crankcase Ventilation Fitting - Connect - Plastic Collar Quick Connect Fitting Service
  198. Oil Level Indicator Tube Bolt (1) - Install and tighten - Fastener Specifications
    GM5535975Courtesy of GENERAL MOTORS COMPANY
  199. Water Pump Gasket (2) - Install NEW [2x]
    GM5587617Courtesy of GENERAL MOTORS COMPANY
  200. Water Pump (1) - Install
  201. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    GM4994474Courtesy of GENERAL MOTORS COMPANY
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  202. Water Pump Housing Bolt (1) - Install and hand tighten [6x]
  203. Water Pump Housing Bolt - Tighten in sequence [6x] - Fastener Specifications
  204. Air Conditioning Compressor (1) - Install
    GM5585692Courtesy of GENERAL MOTORS COMPANY
  205. Air Conditioning Compressor Bolt (1) - Loosely install
    GM5585694Courtesy of GENERAL MOTORS COMPANY
  206. Air Conditioning Compressor Stud (3) - Install and tighten - Fastener Specifications
  207. Air Conditioning Compressor Bolt (1) - Tighten - Fastener Specifications
  208. Air Conditioning Compressor Nut (2) - Install and tighten - Fastener Specifications
  209. Radiator Inlet Hose (3) @Water Pump - Install
    GM4994407Courtesy of GENERAL MOTORS COMPANY
  210. Engine Coolant Air Bleed Hose (2) @Water Pump - Install
  211. Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  212. Radiator Outlet Hose (2) @Water Pump - Install
    GM4994158Courtesy of GENERAL MOTORS COMPANY
  213. Radiator Outlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  214. Heater Water Auxiliary Pump Hose (3) @Water Pump - Install
    GM4994147Courtesy of GENERAL MOTORS COMPANY
  215. Heater Inlet Hose (2) @Water Pump - Install
  216. Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  217. Generator (1) - Install
    GM5642615Courtesy of GENERAL MOTORS COMPANY
  218. Generator Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5642527Courtesy of GENERAL MOTORS COMPANY
  219. Starter Solenoid Cable (2) - Install
    GM5573641Courtesy of GENERAL MOTORS COMPANY
  220. Battery Positive Cable Nut (1) - Install and tighten - Fastener Specifications
  221. Electrical Connector (3) - Connect
  222. Engine Coolant Temperature Sensor Electrical Connector (1) - Connect
    GM4994461Courtesy of GENERAL MOTORS COMPANY
  223. Install the accessory drive auxiliary belt (1) following the instructions included with the accessory drive auxiliary belt.
    GM5116154Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The OEM replacement accessory drive auxiliary belt (1) is packaged with a disposable installation tool and installation instructions.

  224. Inspect the accessory drive auxiliary belt (1) for proper installation and alignment.
  225. Rotate the crankshaft balancer (1) an additional 360 degrees to ensure proper accessory drive auxiliary belt installation.
    GM5116156Courtesy of GENERAL MOTORS COMPANY
  226. Position the accessory drive primary belt (4) on the belt idler pulley (2), fan and water pump pulley (3) and generator (1).
    GM5523120Courtesy of GENERAL MOTORS COMPANY
  227. Install the EN-51767-2  Stretchy Belt Installer (1) onto the crankshaft balancer.
    GM5115929Courtesy of GENERAL MOTORS COMPANY
  228. Position the accessory drive primary belt (2) on the crankshaft balancer.
    GM5115932Courtesy of GENERAL MOTORS COMPANY
  229. Slowly rotate the crankshaft balancer in a clockwise direction until the accessory drive primary belt (2) fully seats on the crankshaft balancer.
  230. Remove the EN-51767-2  Stretchy Belt Installer (1) from the crankshaft balancer.
  231. Inspect the accessory drive primary belt (1) for proper installation and alignment.
    GM5115452Courtesy of GENERAL MOTORS COMPANY
  232. Rotate the crankshaft balancer (1) and additional 360 degrees to ensure proper accessory drive primary belt installation.
    GM5115454Courtesy of GENERAL MOTORS COMPANY
  233. Install the condenser, fan and radiator assembly (1) into its mounts and rotate forward into place.
    GM5569590Courtesy of GENERAL MOTORS COMPANY
  234. Air Conditioning Compressor and Condenser Hose Seal (2) - Install NEW [2x]
    GM5569588Courtesy of GENERAL MOTORS COMPANY
  235. Air Conditioning Condenser and Evaporator Hose (3) @Air Conditioning Condenser - Install
  236. Air Conditioning Compressor and Condenser Hose (1) @Air Conditioning Condenser - Install
  237. Air Conditioning Condenser and Evaporator Hose Nut (2) - Install and tighten - Fastener Specifications
    GM5569587Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  238. Air Conditioning Compressor and Condenser Hose Nut (1) - Install and tighten - Fastener Specifications
  239. Radiator Outlet Hose (2) @Engine Radiator - Install
    GM5569581Courtesy of GENERAL MOTORS COMPANY
  240. Radiator Inlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  241. Transmission Fluid Cooler Pipe Clip (1) - Secure
    GM5569584Courtesy of GENERAL MOTORS COMPANY
  242. Transmission Fluid Cooler Pipe Fitting Seal (2) - Install NEW
    GM5569449Courtesy of GENERAL MOTORS COMPANY
  243. Transmission Fluid Cooler Inlet and Outlet Pipe (1) @Transmission Fluid Auxiliary Cooler - Install
  244. Transmission Fluid Cooler Pipe Nut (1) - Install and tighten - Fastener Specifications
    GM5569448Courtesy of GENERAL MOTORS COMPANY
  245. Transmission Fluid Cooler Pipe Fitting Seal (3) - Install NEW
    GM5569446Courtesy of GENERAL MOTORS COMPANY
  246. Transmission Fluid Cooler Inlet and Outlet Pipe (2) @Transmission Fluid Auxiliary Cooler - Install
  247. Transmission Fluid Cooler Pipe Nut (1) - Install and tighten - Fastener Specifications
  248. Transmission Fluid Cooler Pipe Clip (2) - Install [2x]
    GM5569435Courtesy of GENERAL MOTORS COMPANY
  249. Transmission Fluid Cooler Pipe Bolt (1) - Install and tighten - Fastener Specifications
  250. Radiator Air Side Baffle - Left Side (1) - Install
    GM5569434Courtesy of GENERAL MOTORS COMPANY
  251. Radiator Air Side Baffle Retainer (2) - Install
  252. Radiator Air Side Baffle Retainer (1) - Install [4x]
    GM5569421Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  253. Radiator Air Side Baffle - Right Side (2) - Install
  254. Engine Oil Cooler Hose (1) @Engine Radiator - Install [2x]
    GM5568876Courtesy of GENERAL MOTORS COMPANY
  255. Engine Oil Cooler Pipe Bracket Bolt (3) - Install and tighten - Fastener Specifications
  256. Engine Oil Cooler Retainer (2) - Install [2x]
  257. Engine Oil Cooler Hose Clip (1) - Secure
    GM5568873Courtesy of GENERAL MOTORS COMPANY
  258. Position the wiring harness. (3)
    GM5568871Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  259. Electrical Connector (1) - Connect
  260. Wiring Harness Retainer (2) - Install [2x]
  261. Position the wiring harness. (2)
    GM5568870Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  262. Electrical Connector (3) - Connect
  263. Wiring Harness Retainer (1) - Install [2x]
  264. Radiator Inlet Hose (3) @Engine Radiator - Install
    GM5568866Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  265. Radiator Inlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  266. Radiator Inlet Hose Clip (2) - Install
  267. Radiator Surge Tank Outlet Hose (3) - Move into position
    GM5568620Courtesy of GENERAL MOTORS COMPANY
  268. Radiator Surge Tank Outlet Hose Clip (2) - Install [2x]
  269. Engine Wiring Harness Fuse Block Bracket (3) - Install
    GM5573198Courtesy of GENERAL MOTORS COMPANY
  270. Retaining Tab (1) - Engage
  271. Engine Wiring Harness Fuse Block Bracket Bolt (2) - Tighten [2x] - Fastener Specifications
  272. Electrical Connector (1) - Install [4x]
    GM5573073Courtesy of GENERAL MOTORS COMPANY
  273. Engine Wiring Harness Junction Block (3) - Install
    GM5572883Courtesy of GENERAL MOTORS COMPANY
  274. Retaining Tab (1) - Engage [4x]
  275. Engine Wiring Harness Junction Block Bolt (2) - Tighten [4x] - Fastener Specifications
  276. Starter Solenoid Cable (4) - Install
    GM5572790Courtesy of GENERAL MOTORS COMPANY
  277. Battery Positive Cable Nut (3) - Install and tighten - Fastener Specifications
  278. Engine Wiring Harness Junction Block Cover (2) - Install
  279. Retaining Tab (1) - Engage [2x]
  280. Radiator Air Upper Baffle (2) - Install
    GM5568592Courtesy of GENERAL MOTORS COMPANY
  281. Engage the 6 integral retaining features (1).
  282. Front End Sheet Metal Diagonal Brace (2) @Upper Tie Bar - Install [2x]
    GM5568597Courtesy of GENERAL MOTORS COMPANY
  283. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  284. Front End Sheet Metal Diagonal Brace Bolt (1) @Upper Tie Bar - Install and tighten [4x] - Fastener Specifications
  285. Radiator Surge Tank Inlet Hose (2) @Engine Radiator - Install
    GM5568590Courtesy of GENERAL MOTORS COMPANY
  286. Radiator Surge Tank Inlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  287. Air Cleaner Outlet Duct (1) - Install
    GM5581741Courtesy of GENERAL MOTORS COMPANY
    288. CAUTION:

    Refer to Component Fastener Tightening Caution .

  288. Air Cleaner Outlet Duct Clamp (2) - Tighten - Fastener Specifications
  289. Positive Crankcase Ventilation Fresh Air Tube (3) - Connect - Plastic Collar Quick Connect Fitting Service
  290. Air Cleaner Outlet Duct Bracket Bolt (1) - Install and tighten - Fastener Specifications
    GM5001375Courtesy of GENERAL MOTORS COMPANY
  291. Install the engine wiring harness to the air cleaner outlet duct bracket.
  292. Air Cleaner Assembly (1) - Install
    GM5503547Courtesy of GENERAL MOTORS COMPANY
  293. Intake Air Duct Retainer (1) - Install
    GM5503528Courtesy of GENERAL MOTORS COMPANY
  294. Intake Air Splash Shield (2) - Install
    GM5541732Courtesy of GENERAL MOTORS COMPANY
  295. Intake Air Baffle Retainer (1) - Install [9x]
  296. Hood Secondary Latch Release Handle (2) - Install
    GM5541781Courtesy of GENERAL MOTORS COMPANY
  297. Hood Latch Actuator Bolt (1) - Install and tighten [2x] - Fastener Specifications
  298. Air Cleaner Nut (2) - Install and tighten - Fastener Specifications
    GM5503517Courtesy of GENERAL MOTORS COMPANY
  299. Air Cleaner Outlet Duct (1) - Install
  300. Connect the mass airflow sensor electrical connector (2) and engage all engine wiring harnesses to the air cleaner assembly.
    GM5503496Courtesy of GENERAL MOTORS COMPANY
  301. Air Cleaner Outlet Duct Clamp (1) - Tighten - Fastener Specifications
  302. Exhaust Manifold Gasket- Left Side (2) - Install NEW
    GM5647178Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.

  303. Exhaust Manifold- Left Side (1) - Install
  304. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    GM5647175Courtesy of GENERAL MOTORS COMPANY
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  305. Exhaust Manifold Bolt- Left Side (1) - Install NEW and hand tighten [5x]
  306. Exhaust Manifold Bolt- Left Side (1) - Tighten in sequence [5x] - Fastener Specifications
  307. Exhaust Manifold Heat Shield- Left Side (1) - Install
    GM5647218Courtesy of GENERAL MOTORS COMPANY
  308. Through the wheel opening, install and tighten the 3 left side exhaust manifold heat shield bolts (1). Fastener Specifications
    GM5647219Courtesy of GENERAL MOTORS COMPANY
  309. Inspect the inside of the spark plug rubber boot for a thin, even coat of grease. If there is no grease present or additional grease is necessary, apply a thin coating of dielectric grease evenly to the inside of the spark plug rubber boot up to a depth 15 mm (0.6 in) of from the end of the boot Adhesives, Fluids, Lubricants, and Sealers
    GM5549185Courtesy of GENERAL MOTORS COMPANY
  310. Push the boot of the 4 spark plug wires (1) onto the gas engine ignition spark plugs (2).
  311. Upper Intermediate Steering Shaft (1) @Intermediate Steering Shaft - Install
    GM5002171Courtesy of GENERAL MOTORS COMPANY
  312. If a NEW threaded component is being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded component is reused, prepare the threaded component using the following steps:
    GM5002170Courtesy of GENERAL MOTORS COMPANY
    1. Remove any loose cured adhesive from the external threads of the component using a lint free cloth.
    2. Thread the cleaned component into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the component. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
    313. CAUTION:

    Refer to Fastener Caution .

  313. Mid Intermediate Steering Shaft Bolt (1) - Install and tighten - Fastener Specifications
  314. Valve Rocker Arm Cover Insulator- Left Side (3) - Install
    GM5536408Courtesy of GENERAL MOTORS COMPANY
  315. Install the 3 upper intake manifold sight shield grommets (2) to the 3 valve rocker arm cover insulator retainers (1).
  316. Exhaust Manifold Gasket- Right Side (2) - Install NEW
    GM4992392Courtesy of GENERAL MOTORS COMPANY
  317. Install the right side exhaust manifold (1) through the wheel opening.
  318. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    GM4992369Courtesy of GENERAL MOTORS COMPANY
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  319. Exhaust Manifold Bolt- Right Side (1) - Install NEW and hand tighten [5x]
  320. Exhaust Manifold Bolt- Right Side (1) - Tighten in sequence [5x] - Fastener Specifications
  321. Install the right exhaust manifold heat shield (1) through the wheel opening.
    GM4992288Courtesy of GENERAL MOTORS COMPANY
  322. Exhaust Manifold Heat Shield Bolt-Right Side (1) - Install and hand tighten [3x]
    GM4992215Courtesy of GENERAL MOTORS COMPANY
  323. Exhaust Manifold Heat Shield Bolt-Right Side (1) - Tighten [3x] - Fastener Specifications
  324. Wiring Harness - Install
  325. Retainer Clip (1) @Cylinder Head - Right Side (2) - Install
    GM5584902Courtesy of GENERAL MOTORS COMPANY
  326. Inspect the inside of the spark plug rubber boot for a thin, even coat of grease. If there is no grease present or additional grease is necessary, apply a thin coating of dielectric grease evenly to the inside of the spark plug rubber boot up to a depth of 15 mm (0.6 in) from the end of the boot Adhesives, Fluids, Lubricants, and Sealers .
    GM5541819Courtesy of GENERAL MOTORS COMPANY
  327. Push the boot of the 4 spark plug wires (1) onto the gas engine ignition spark plugs. (2).
  328. Valve Rocker Arm Cover Insulator- Right Side (3) - Install
    GM5537681Courtesy of GENERAL MOTORS COMPANY
  329. Install the 3 upper intake manifold sight shield grommets (1) to the 3 valve rocker arm cover insulator retainers (2).
  330. Exhaust System Seal (1) - Install NEW
    GM5001105Courtesy of GENERAL MOTORS COMPANY
  331. Exhaust System Seal (1) - Install NEW
    GM5001113Courtesy of GENERAL MOTORS COMPANY
  332. Exhaust Front Pipe Nut- Left Side (1) - Install and hand tighten [3x]
    GM5584496Courtesy of GENERAL MOTORS COMPANY
  333. Exhaust Front Pipe Nut- Left Side (1) - Tighten [3x] - Fastener Specifications
  334. Exhaust Front Pipe Nut- Right Side (1) - Install and hand tighten [3x]
    GM5584486Courtesy of GENERAL MOTORS COMPANY
  335. Exhaust Front Pipe Nut- Right Side (1) - Tighten [3x] - Fastener Specifications
  336. Exhaust Front Pipe Heat Shield- Left Side (2) - Install
    GM5508824Courtesy of GENERAL MOTORS COMPANY
  337. Exhaust Heat Shield Bolt- Left Side (1) - Install and tighten - Fastener Specifications
  338. Using a suitable tool, install and tighten the heated oxygen sensor (1). Fastener Specifications
    GM5525401Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

  339. Connect the heated oxygen sensor electrical connector.
  340. Using a suitable tool, install and tighten the heated oxygen sensor (1). Fastener Specifications
    GM5568855Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

  341. Connect the heated oxygen sensor electrical connector.
  342. Exhaust Front Pipe Heat Shield (2) - Install
    GM5508826Courtesy of GENERAL MOTORS COMPANY
  343. Exhaust Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  344. Front Wheelhouse Liner- Left Side and Right Side - Install [2x] - Front Wheelhouse Liner Replacement
  345. Underbody Skid Shield (3) - Install
    GM5512332Courtesy of GENERAL MOTORS COMPANY
  346. Underbody Splash Shield Bolt (2) - Install and tighten [2x] - Fastener Specifications
  347. Underbody Splash Shield (1) - Install
    GM5512311Courtesy of GENERAL MOTORS COMPANY
  348. Underbody Splash Shield Bolt (1) - Install and tighten [4x] - Fastener Specifications
    GM5512320Courtesy of GENERAL MOTORS COMPANY
  349. Underbody Splash Shield Bolt (2) - Install and tighten [4x] - Fastener Specifications
  350. Lower the vehicle.
  351. Fill the engine oil to the proper level with NEW engine oil.
  352. Install the oil level indicator. (1)
    GM5535974Courtesy of GENERAL MOTORS COMPANY
  353. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  354. Recharge the refrigerant. Refrigerant Recovery and Recharging
  355. Inspect for refrigerant leaks.
  356. Fill the cooling system. Cooling System Draining and Filling (GE 47716 L84, L87)
  357. Start the engine and check for coolant leaks.
  358. Check for oil leaks.
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