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Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition OFF.
  2. Remove the air inlet duct. Refer to Air Cleaner Intake Duct Replacement in Engine Controls - 3.6L (LY7).
  3. Remove the master cylinder fluid level sensor to provide clearance for lowering the powertrain. Refer to Master Cylinder Fluid Level Sensor Replacement in Hydraulic Brakes.
  4. Disconnect the torque struts from the engine. Refer to and in Engine Mechanical - 3.6L (LY7).
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Disconnect the intermediate steering shaft from the steering gear. Refer to Intermediate Steering Shaft Replacement in Steering Wheel and Column.
  7. Remove the catalytic converter. Refer to Catalytic Converter Replacement .
    8. Fig 1: Supporting Powertrain With Utility Stand At Center Of Left Frame
    GM1408730Courtesy of GENERAL MOTORS CORP.
  8. Use a utility stand at the center of the left frame in order to support the powertrain.
  9. Remove the front portion of the left front wheel liner in order to provide access to the frame bolt. Refer to Front Fender Liner Replacement in Body Front End.
  10. Remove the two frame left side bolts only.
  11. Raise the vehicle and/or lower the powertrain enough to access to the exhaust crossover pipe to right bank exhaust manifold nuts.
    12. Fig 2: Locating Exhaust Crossover Pipe To Left Bank Exhaust Manifold Nuts
    GM1395470Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Use a long extension in order to remove the exhaust crossover pipe nuts.
  12. Remove the exhaust crossover pipe to right bank exhaust manifold nuts (3).
    13. Fig 3: Identifying Exhaust Manifold Bolts
    GM1404032Courtesy of GENERAL MOTORS CORP.
  13. Remove the exhaust manifold bolts.
  14. Remove the exhaust manifold with the exhaust manifold heat shield.
  15. Remove and discard the exhaust manifold gasket.
    16. Fig 4: View Of Exhaust Manifold Heat Shield Bolts And The Heat Shield
    GM1395455Courtesy of GENERAL MOTORS CORP.
  16. If the exhaust manifold is being replaced, remove the exhaust manifold heat shield bolts and the heat shield.
  17. Clean and inspect the exhaust manifold and the sealing surfaces. Refer to Exhaust Manifold Cleaning and Inspection - Right in Engine Mechanical - 3.6L (LY7).
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