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Home >> Pontiac >> 2007 >> Solstice GXP, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 2.4L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Battery Cable Ground Terminal And Engine Harness Ground Terminal
    GM1591855Courtesy of GENERAL MOTORS CORP.
  1. Remove the hood. Refer to Hood Replacement .
  2. Remove the intake manifold. Refer to Intake Manifold Replacement .
  3. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement (LNF) or Exhaust Manifold Replacement (LE5) .
  4. Remove the timing chain. Refer to Timing Chain, Sprockets, and/or Tensioner Replacement .
  5. Drain the cooling system. Refer to Draining and Filling Cooling System (GE-47716) or Draining and Filling Cooling System (2.4L LE5 Only) .
  6. Remove the negative battery cable ground terminal bolt.
  7. Remove the negative battery cable ground terminal and engine harness ground terminal from the cylinder head.
    8. Fig 2: CMP Sensor Electrical Connector
    GM1591857Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the intake camshaft position (CMP) sensor electrical connector.
  9. Remove the evaporative emission (EVAP) canister purge solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement .
    10. Fig 3: CMP Sensor & ECT Sensor Electrical Connectors
    GM1591858Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the engine wiring harness electrical connector from the exhaust CMP sensor.
  11. Remove the engine harness ground terminal bolt (1) and reposition the engine harness ground terminal (2).
  12. Disconnect the engine wiring harness electrical connector (6) from the engine coolant temperature (ECT) sensor.
    13. Fig 4: Radiator Inlet Hose
    GM1592523Courtesy of GENERAL MOTORS CORP.
  13. Reposition the radiator inlet hose clamp at the engine.
  14. Remove the radiator inlet hose from the cylinder head.
    15. Fig 5: Intake Manifold Cover Bracket
    GM1694522Courtesy of GENERAL MOTORS CORP.
  15. Remove the intake manifold cover bracket bolts and bracket.
    16. Fig 6: Cylinder Head Bolt Removal Sequence
    GM465863Courtesy of GENERAL MOTORS CORP.
  16. Remove the cylinder head bolts in the sequence shown. Discard the bolts.
    17. Fig 7: View Of Cylinder Head And Gasket
    GM412427Courtesy of GENERAL MOTORS CORP.
  17. Remove the cylinder head.
  18. Remove the cylinder head gasket.
  19. Clean all of the gasket surfaces.
  20. 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.
      • IMPORTANT: 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.
      • IMPORTANT: 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.
  21. Clean the old sealer/lube and any dirt from around the bolt holes.
    22. IMPORTANT: DO NOT use a tap to clean the cylinder head bolt holes.
  22. Clean the bolts holes with a nylon bristle brush.
  23. 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.
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