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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1054 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (6.6L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the transmission with a suitable transmission jack.
  3. Remove the transmission mount to transmission support nuts.
    Fig 1: Identifying Transmission Mount Nuts
    GM647997Courtesy of GENERAL MOTORS CORP.
  4. Raise the transmission off of the transmission support.
  5. Fig 2: Transmission Support Crossmember (6.0L, 6.6L, and 8.1L Engines)
    GM788013Courtesy of GENERAL MOTORS CORP.
  6. Remove the transmission support crossmember bolts.
  7. Remove the transmission support crossmember.
  8. Fig 3: Exhaust Muffler Nuts (6.0L, 6.6L, and 8.1L Engines)
    GM694338Courtesy of GENERAL MOTORS CORP.
  9. If equipped with the 6.6L engine, remove the exhaust muffler nuts.
  10. Fig 4: View Of Turbocharger Exhaust Pipe & Clamp
    GM668379Courtesy of GENERAL MOTORS CORP.
  11. If equipped with a 6.6L engine, loosen the exhaust pipe clamp.
  12. Slide the exhaust pipe clamp up onto the exhaust pipe adapter.
  13. Fig 5: Catalytic Converter (6.6L Engine)
    GM1284307Courtesy of GENERAL MOTORS CORP.
  14. If equipped with a 6.6L engine, remove the catalytic converter.
  15. Slide the catalytic converter hanger out of the exhaust pipe hanger bracket.