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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1839 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (2.2L (L61) and 2.4L (LAT)) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.
NOTE: Excessive flexing of the exhaust pipe may damage the flex coupling. Limit flexing to 12 degrees.
    Fig 1: View Of Gasket & Exhaust Pipe
    GM926819Courtesy of GENERAL MOTORS CORP.
  1. Remove the bank 2 heated oxygen sensor (HO2S). Refer to one of the following:
  2. Remove the catalytic converter to muffler assembly nuts and separate the flange from the studs.
    3. Fig 2: View Of Exhaust Manifold Pipe
    GM898154Courtesy of GENERAL MOTORS CORP.
  3. Remove the catalytic converter to exhaust manifold nuts.
    4. Fig 3: View Of Hanger From The Rubber Isolators
    GM926825Courtesy of GENERAL MOTORS CORP.
  4. Separate the catalytic converter rubber isolator from the hanger.
  5. Separate the catalytic converter pipe flange from the exhaust manifold studs, and remove the catalytic converter.
  6. Remove and discard the catalytic converter to exhaust manifold gasket.
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