Exhaust Manifold Removal - Left

Important:  Do not remove the check valve from the air injection reaction (AIR) pipe unless service is required.

Do not remove the oxygen sensor from the exhaust manifold unless service is required.

1. Remove the AIR pipe, with check valve, bolts, and gasket from the left exhaust manifold.
   Fig 1: Removing AIR Pipe

   Courtesy of GENERAL MOTORS CORP.
2. Remove the spark plug wires from the spark plugs.

   Do not remove the spark plug wires from the ignition coils unless required.

3. Remove the oxygen sensor from the manifold.
   Fig 2: Removing Oxygen Sensor

   Courtesy of GENERAL MOTORS CORP.
4. Remove the exhaust manifold, bolts, and gasket.
5. Discard the gasket.
6. Remove the heat shield and bolts, if required.
   Fig 3: Removing Exhaust Manifold - Left

   Courtesy of GENERAL MOTORS CORP.