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Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Radiator Inlet Hose To Engine
    GM1656126Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill With HP5) or Cooling System Draining and Filling (Static Fill Without HP5) or Cooling System Draining and Filling (GE 47716 Fill With HP5) or Cooling System Draining and Filling (GE 47716 Fill Without HP5) .
  2. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement (LAT or LE5) .
  3. Remove the intake manifold. Refer to Intake Manifold Replacement (LAT)  or Intake Manifold Replacement (LE5) .
  4. Reposition the radiator surge tank air bleed hose clamp.
  5. Remove the radiator surge tank air bleed hose from the cylinder head.
  6. Reposition the radiator inlet hose clamp using the J 38185  . See Special Tools .
  7. Remove the radiator inlet hose from the cylinder head.
  8. Disconnect all electrical connectors as necessary.
  9. Remove the spark plugs. Refer to Spark Plug Replacement
  10. Remove the camshaft cover. Refer to Camshaft Cover Replacement (LE5)  or Camshaft Cover Replacement (LAT) .
    11. NOTE: If the intake camshaft actuator is moving independently of the camshaft, this means the camshaft is not locked to the actuator. Rotate the camshaft counter-clockwise while the holding tool is installed and this will lock the camshaft to the actuator.
  11. Rotate the crankshaft clockwise to install the camshaft actuator locking tool EN-48953:  EGR Cooler Pressure Tester Adapter Set.
    12. Fig 2: Loosening/Tightening Camshaft Actuator Retainer Bolts
    GM2066456Courtesy of GENERAL MOTORS CORP.
  12. Install the EN-48953  (1).
    13. CAUTION: Refer to Fastener Caution .
  13. Install the camshaft actuator tool and bolts tighten to 10 N.m (89 lb in).
    14. Fig 3: View Of Upper Timing Chain Guide Bolts And Guide
    GM1578296Courtesy of GENERAL MOTORS CORP.
  14. Remove the upper timing chain guide bolts and guide.
  15. Clean the timing chain and gears with solvent.
    16. NOTE: Ensure the timing chain and the camshaft position actuators are marked for proper assembly.
  16. Mark the timing gear sprockets and the timing chain. It is recommended that the paint marks are located in the 12 o'clock position.
  17. Loosen, but do not remove the intake and exhaust camshaft actuator bolts.
  18. Remove the camshaft actuator locking tool, EN-48953  .
    19. Fig 4: View Of Timing Chain & Chain Retention Tool
    GM2066475Courtesy of GENERAL MOTORS CORP.
    NOTE: Ensure the tips of the EN-48749  are fully engaged into the timing chain. The retention tool rod can be used on the back side of the chain to ensure the teeth from the retention tool are engaged.
  19. Install the timing chain retention tool EN-48749  (1) to the intake side of the timing chain.
    20. Fig 5: Identifying Timing Chain Tensioner
    GM412158Courtesy of GENERAL MOTORS CORP.
  20. Remove the timing chain tensioner.
    21. Fig 6: Identifying Timing Chain Retention Tool
    GM2134127Courtesy of GENERAL MOTORS CORP.
    NOTE: The Intake camshaft and actuator should not rotate during the removal or installation.
  21. Install the timing chain retention tool EN-48749  (1) to the exhaust side of the timing chain.
    22. Fig 7: Exhaust Camshaft Sprocket
    GM1578298Courtesy of GENERAL MOTORS CORP.
  22. Remove and discard the exhaust camshaft actuator bolt (2).
  23. Remove the exhaust cam actuator (3) from the exhaust camshaft while also removing the actuator from the chain.
    24. Fig 8: Timing Chain & Camshaft Position Actuator
    GM1578297Courtesy of GENERAL MOTORS CORP.
  24. Remove and discard the intake camshaft actuator bolt (2).
  25. Remove the intake camshaft actuator (3) from the camshaft while also removing the actuator from the timing chain.
    26. Fig 9: Aligning Marks On Cylinder Head In Relationship To Camshaft Actuator Notches
    GM2066509Courtesy of GENERAL MOTORS CORP.
  26. Mark the cylinder head (1) in relationship to the camshaft actuator notch is on the camshaft (2).
    27. Fig 10: View Of Fixed Timing Chain Guide Access Plug
    GM412164Courtesy of GENERAL MOTORS CORP.
  27. Remove the fixed timing chain guide access plug.
  28. Remove the upper fixed timing chain guide bolt.
    29. Fig 11: View Of Rubber Band To Pull Guides Together
    GM2066512Courtesy of GENERAL MOTORS CORP.
    NOTE: The threaded rod from the timing chain retention tool can be used to help feed the rubber band around the chain guides.
  29. Install a rubber band (1) around the top of the upper timing chain guides (2) in order to pull the guides together.
    30. Fig 12: Cylinder Head Bolt Removal Sequence
    GM465863Courtesy of GENERAL MOTORS CORP.
  30. Remove the cylinder head bolts in the sequence shown. Discard the bolts.
    31. Fig 13: View Of Cylinder Head And Gasket
    GM412427Courtesy of GENERAL MOTORS CORP.
  31. Remove the cylinder head.
  32. Remove the cylinder head gasket.
  33. Clean all of the gasket surfaces.
  34. Use the following steps when cleaning the cylinder head and cylinder block surfaces:
    • Use a razor blade gasket scraper to clean the cylinder head and cylinder block gasket surfaces. Do not scratch or gouge either surface.
      • NOTE: DO NOT use any other method or technique to clean these gasket surfaces.
    • Use a NEW razor blade on the cylinder head and a NEW blade on the cylinder block.
      • NOTE: Be careful not to gouge or scratch the gasket surfaces. DO NOT gouge or scrape the combustion chamber surfaces. The feel of the gasket surface is important, not the appearance. There will be indentations from the gasket left in the cylinder head after all of the gasket material is removed. These small indentations will be filled in by the NEW gasket.
    • Hold the razor blade as parallel to the gasket surface as possible.
  35. Clean the old sealer/lube and any dirt from around the bolt holes.
    36. NOTE: DO NOT use a tap to clean the cylinder head bolt holes.
  36. Clean the bolts holes with a nylon bristle brush.
  37. When cleaning the cylinder head bolt holes use suitable commercial spray liquid solvent and compressed air from an extended-tip blow gun in order to reach the bottom of the holes.
  38. If replacing the cylinder head, transfer all parts as necessary.
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