LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1468 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (4.2L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the heated oxygen sensor (H2OS). Refer to Heated Oxygen Sensor Replacement - Position 2 in Engine Controls - 4.2L.
    3. Fig 1: Removing/Installing Catalytic Converter Pipe From Exhaust Manifold
    GM1338717Courtesy of GENERAL MOTORS CORP.
  3. Remove the nuts that secure the catalytic converter pipe to the exhaust manifold.
  4. Discard the old exhaust seal. Do NOT reuse the seal.
    5. Fig 2: Exhaust Pipe To Muffler Joint
    GM753687Courtesy of GENERAL MOTORS CORP.
  5. Remove the nuts that secure the catalytic converter pipe to the muffler.
  6. Remove the transmission mount. Refer to Transmission Mount Replacement (4.2L) or Transmission Mount Replacement (5.3L) in Automatic Transmission-4L60-E/4L65-E.
  7. Remove the catalytic converter pipe from the vehicle.
    8. Fig 3: Removing/Installing Exhaust Hanger From Catalytic Converter Pipe
    GM1338721Courtesy of GENERAL MOTORS CORP.
  8. Remove the exhaust hanger from the catalytic converter pipe.
scientia non olet · About LEMON Manuals