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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Engine Exhaust System) >> Repair Instructions >> Exhaust Seal Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and suitably support the vehicle.
    WARNING: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.
    WARNING: Always wear protective goggles and gloves when removing exhaust parts as falling rust and sharp edges from worn exhaust components could result in serious personal injury.
  2. Remove the catalytic converter pipe to exhaust manifold flange nuts.
  3. Remove the catalytic converter pipe from the exhaust manifold.
  4. Remove and discard the seal.
  5. Inspect the exhaust manifold studs for damage.
  6. Remove any damaged studs.
    Fig 1: Removing Nuts, Catalytic Converter Pipe, Seal & Studs
    G02080463Courtesy of GENERAL MOTORS CORP.
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