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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Engine Mechanical - 3.5L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) in Engine Cooling.
  3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  4. Lower the vehicle.
  5. Remove the lower intake manifold. Refer to Intake Manifold Replacement - Lower .
  6. Remove the valve rocker arms and the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  7. Remove the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT in Engine Exhaust.
  8. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
  9. Remove the left spark plug wires from the spark plugs. Refer to Spark Plug Wire Replacement in Engine Controls - 3.5L.
  10. Remove the left spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.5L.
  11. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.5L) in Engine Exhaust.
    12. Fig 1: Left Cylinder Head & Bolts
    GM190595Courtesy of GENERAL MOTORS CORP.
  12. Remove the left cylinder head bolts and discard.
  13. Remove the left cylinder head.
    14. Fig 2: Left Cylinder Head Gasket
    GM190594Courtesy of GENERAL MOTORS CORP.
  14. Remove the left cylinder head gasket.
  15. Clean and inspect the cylinder head and the gasket mating surfaces. Refer to Engine Block Cleaning and Inspection  andCylinder Head Cleaning and Inspection .
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