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Home >> Chevrolet >> 2008 >> Impala LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Engine Mechanical - 3.6L (Ly7) (Repair Instructions -- 1 Of 5)) >> On-Vehicle Repair Instructions - Part 1 >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the powertrain module from the vehicle. Refer to Engine Replacement .
  2. Remove the lower intake manifold. Refer to Intake Manifold Replacement - Lower .
  3. Remove the generator. Refer to Generator Replacement (L26) or Generator Replacement (LY7) in Engine Electrical.
  4. Remove the left bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Left .
  5. Remove the oil level indicator. Refer to Oil Level Indicator and Tube Replacement .
    6. Fig 1: Locating Coolant Temperature Sensor Electrical Connector
    GM1394058Courtesy of GENERAL MOTORS CORP.
  6. Remove the heat shield from the coolant temperature sensor and disconnect the coolant temperature sensor electrical connector.
    7. IMPORTANT: Do not remove the exhaust crossover pipe.
  7. Disconnect the exhaust crossover pipe from the left bank exhaust manifold. Refer to Exhaust Crossover Pipe Replacement (RPOs L26/L32) or Exhaust Crossover Pipe Replacement (RPO LY7) in Engine Exhaust.
    8. Fig 2: View Of Left Cylinder Head
    GM902815Courtesy of GENERAL MOTORS CORP.
  8. Remove the cylinder head with the exhaust manifold. Refer to Cylinder Head Removal - Right .
    9. Fig 3: View Of Left Cylinder Head Gasket
    GM902814Courtesy of GENERAL MOTORS CORP.
  9. Remove and discard the cylinder head gasket.
  10. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to Cylinder Head Cleaning and Inspection and Engine Block Cleaning and Inspection .
  11. If necessary, perform the following steps:
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