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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Engine Mechanical - 3.8L) >> Repair Instructions - On Vehicle >> Cylinder Head Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  4. Drain the cooling system. Refer to Cooling System Draining and Filling (L26, LY7 GE 47716 Fill) or Cooling System Draining and Filling (L26 Static Fill) .
  5. Lower the vehicle.
  6. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  7. Remove the ignition control module and the bracket from the left cylinder head. Refer to Ignition Control Module Replacement .
  8. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side (L26) .
  9. Remove the left engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Left Side .
  10. Remove the lower intake manifold. Refer to Lower Intake Manifold Replacement .
  11. Remove the left spark plugs from the left cylinder head. Refer to Spark Plug Replacement .
  12. Remove the left exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side 3.8L .
  13. Remove the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side .
  14. Remove the left rocker arms and the push rods. Refer to Valve Rocker Arm and Push Rod Replacement .
    15. Fig 1: Identifying Left Cylinder Head & Bolts
    GM153597Courtesy of GENERAL MOTORS CORP.
  15. Remove the left cylinder head bolts. Discard the cylinder head bolts.
  16. Remove the left cylinder head.
    17. Fig 2: View Of Left Cylinder Head Gasket
    GM406043Courtesy of GENERAL MOTORS CORP.
  17. Remove the cylinder head gasket.
  18. Remove the caps, the springs, the valves and the seals from the cylinder head. Refer to Cylinder Head Disassemble .
  19. Clean the gasket mating surfaces on the cylinder head, the cylinder block and the intake manifold.
  20. Clean the cylinder block bolt hole threads.
  21. Inspect the engine block. Refer to Engine Block Cleaning and Inspection .
  22. Inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .
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