Removal Procedure
WARNING: This page is about a different variant/trim than selected.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill LX9) or Cooling System Draining and Filling (Static Fill LZ9) or Cooling System Draining and Filling (Vac-N-Fill) in Engine Cooling.
- Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
- Lower the vehicle.
- Remove the lower intake manifold. Refer to Lower Intake Manifold Replacement .
- Remove the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
- Remove the exhaust crossover pipe. Refer to Exhaust Crossover Pipe Replacement (RPO LX9) or Exhaust Crossover Pipe Replacement (RPO LZ9) .
- Remove the right spark plug wires from the spark plugs. Refer to Spark Plug Wire Replacement in Engine Controls - 3.5L.
- Remove the right spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.5L.
- Remove the generator. Refer to Generator Replacement (RPO LX9) or Generator Replacement (RPO LZ9) in Engine Electrical.
- Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side (RPO LX9) or Exhaust Manifold Replacement - Right Side (RPO LZ9) in Engine Exhaust.
- Remove the right cylinder head bolts and discard.
- Remove the right cylinder head.
- Remove the right cylinder head gasket.
- Clean and inspect the cylinder head and the gasket mating surfaces. Refer to Engine Block Cleaning and Inspection andCylinder Head Cleaning and Inspection .