GM Service Manual Online
For 1990-2009 cars only

Installation Procedure

Tools Required

J 39194-C 02 Sensor Wrench


    Object Number: 896474  Size: SH
  1. Install the rear exhaust manifold gasket.
  2. Install the rear exhaust manifold.
  3. Install the exhaust manifold nuts.
  4. Tighten
    Tighten the exhaust manifold nuts to 20 N·m (15 lb ft).

  5. Install the EGR pipe.
  6. Tighten
    Tighten the EGR pipe bolts to 25 N·m (18 lb ft).


    Object Number: 896469  Size: SH
  7. Install the oxygen sensor using the J 39194-C .
  8. Tighten
    Tighten the oxygen sensors (exhaust manifold) to 50 N·m (37 lb ft).

  9. Install the front exhaust manifold gasket.
  10. Install the rear exhaust manifold.
  11. Install the exhaust manifold nuts.
  12. Tighten
    Tighten the exhaust manifold nuts to 20 N·m (15 lb ft).