GM Service Manual Online
For 1990-2009 cars only

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1240438  Size: SH
  1. Install the exhaust manifold to the pup-up catalytic converter bolts and tighten to 50-60 N·m (36-43 lb ft).

  2. Object Number: 1240422  Size: SH
  3. Install the exhaust manifold with pup-up catalytic converter and tighten the bolts and nuts to 17-27 N·m (13-20 lb ft).

  4. Object Number: 1240405  Size: SH
  5. Install the exhaust pipe to the pup-up catalytic converter and tighten the nuts to 25-35 N·m (18-25 lb ft).

  6. Object Number: 1240389  Size: SH
  7. Install the exhaust manifold heat shield and tighten the bolts to 8-12 N·m (71-106 lb in).
  8. Connect the O2S sensor connector and ignition wire.
  9. Install snorkel assembly, resonator and filter. Refer to Air Cleaner Assembly Replacement.
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