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Removal Procedure

CAUTION: Refer to PROTECTIVE GOGGLES & GLOVE CAUTION in Cautions and Notices.
NOTE: When jacking or lifting the vehicle from the frame side rails, be certain lift pads do not contact the three-way catalytic converter as damage to the converter will result.
NOTE: Replacement of exhaust system parts must be OEM standard to ensure that the vehicle operates as designed.
  1. Raise and suitably support the vehicle. Refer to JACKING AND LIFTING in General Information.
  2. Remove the catalytic converter. Refer to Catalytic Converter Replacement (2.2L)  or Catalytic Converter Replacement (Pickup 4.3L)  or Catalytic Converter Replacement (Utility 4.3L)  .
  3. Remove the exhaust manifold pipe to manifold flange bolts.
    Fig 1: Removing Exhaust Manifold Pipe To Manifold Flange Bolts
    G01979412Courtesy of GENERAL MOTORS CORP.
  4. Remove the exhaust manifold pipe and seal from the vehicle.
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