GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1836990  Size: SH
  1. Remove the right and left catalytic converter to exhaust flexible pipe bolts and nuts.
  2. Remove the flexible pipe insulator from the pipe hanger.

  3. Object Number: 1836993  Size: SH
  4. Loosen the exhaust muffler clamps.

  5. Object Number: 1837182  Size: SH
  6. Separate the exhaust flexible pipe from the catalytic converters.
  7. Remove the exhaust flexible pipe from the muffler.
  8. Remove and discard the catalytic converter to flexible pipe gaskets.

Installation Procedure


    Object Number: 1837182  Size: SH
  1. Install the exhaust flexible pipe to the muffler.
  2. Insert NEW catalytic converter to flexible pipe gaskets between the catalytic converters and the exhaust flexible pipe.
  3. Install the exhaust flexible pipe to the catalytic converters.
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1836993  Size: SH
  5. Tighten the exhaust muffler clamps.
  6. Tighten
    Tighten the clamps to 5 N·m (44 lb in).


    Object Number: 1836990  Size: SH
  7. Install the flexible pipe insulator to the pipe hanger.
  8. Install the right and left catalytic converter to exhaust flexible pipe bolts.
  9. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).