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Home >> Cadillac >> 2019 >> ATS Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Catalytic Converter Replacement >> Removal Procedure

Removal Procedure

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:

Avoid contact with HOT components. Wear safety glasses and protective gloves to avoid personal injury.

  1. Turbocharger Heat Shield - Remove - Turbocharger Heat Shield Replacement
  2. Exhaust Muffler - Remove - Exhaust Muffler Replacement (LF4) , or Exhaust Muffler Replacement (LTG) 
  3. GM4406263Courtesy of GENERAL MOTORS COMPANY

    Heated Oxygen Sensor Electrical Connector (1) - Disconnect [2x]

  4. GM4620829Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket Bolt (1) - Remove

  5. Catalytic Converter Brace Bracket Bolt (2) - Remove
  6. Catalytic Converter Brace Bracket-Lower (3) - Remove
  7. Lower the vehicle. Lifting and Jacking the Vehicle (ATS) , or Lifting and Jacking the Vehicle (ATS-V)
  8. GM4406530Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Remove [4x]

  9. Raise and support the vehicle. Lifting and Jacking the Vehicle (ATS) , or Lifting and Jacking the Vehicle (ATS-V)
  10. GM4406306Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket Bolt (1) - Remove [2x]

  11. Catalytic Converter Brace Bracket-Upper (2) - Remove
  12. GM4406530Courtesy of GENERAL MOTORS COMPANY

    Warm Up Three-Way Catalytic Converter (2) - Remove

  13. Catalytic Converter Seal (3) - Remove and DISCARD