GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1594316  Size: SH
  1. Remove the exhaust manifold heat shield bolts.
  2. Remove the exhaust manifold heat shield.

  3. Object Number: 825111  Size: SH
  4. Remove the block heater if equipped.

  5. Object Number: 1594322  Size: SH
  6. Remove the oxygen sensor.

  7. Object Number: 1594325  Size: SH
  8. Remove and discard the exhaust manifold to cylinder head retaining nuts.
  9. Remove the exhaust manifold.
  10. If the exhaust manifold is being replaced, transfer the following parts:
  11. • The exhaust manifold heat shield
    • The oxygen sensor