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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1293 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (AWD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle. Support the vehicle. Refer to JACKING AND LIFTING - AWD .
  2. Remove the Heated Oxygen Sensor 2 (HO2S2). Refer to HEATED OXYGEN SENSOR 2 or HEATED OXYGEN SENSOR 2 in Engine Controls - 1.8L(LV6).
  3. Remove the bolts securing the front pipe to the Three-Way Catalytic Converter (TWC).
    1. Remove the bolt and clamp securing the Three-Way Catalytic Converter (TWC) to the muffler/tail pipe assembly.
  4. Remove the hangers from the rear of the TWC (2).
  5. Remove the TWC from the vehicle.
  6. Clean the gasket and seal mating surfaces.
    Fig 1: Removing Procedure Catalytic Converter (AWD)
    G01548151Courtesy of GENERAL MOTORS CORP.
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