GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Removal J Car


    Object Number: 1979  Size: SH
  1. Remove the oxygen sensor from the exhaust manifold to prevent damage to the sensor.

  2. Object Number: 182885  Size: SH
  3. Remove the exhaust manifold nuts.
  4. Remove the exhaust manifold.
  5. Remove the exhaust manifold gasket.

Exhaust Manifold Removal S/T Truck


    Object Number: 601942  Size: SH
  1. Remove the oxygen sensor from the exhaust manifold to prevent damage to the sensor.

  2. Object Number: 601943  Size: SH
  3. Remove the air injection nuts (1) and (2).
  4. Remove the air injection pipe from the exhaust manifold.

  5. Object Number: 601946  Size: SH
  6. Remove the exhaust manifold nuts.
  7. Remove the exhaust manifold.
  8. Remove the exhaust manifold gasket.