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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 364 (Exhaust System) >> Repair Instructions >> Warm Up Three-Way Catalytic Converter Replacement (LCV) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
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.

    Fig 1: Exhaust Manifold Heat Shield
    GM2908509Courtesy of GENERAL MOTORS COMPANY
  1. Remove Exhaust Manifold Heat Shield (2) - Exhaust Manifold Heat Shield Replacement (LCV) 
  2. Remove Heated Oxygen Sensor-Sensor 2 - Heated Oxygen Sensor Replacement - Sensor 2
  3. Fig 2: Catalytic Converter Brace Bracket Bolt
    GM4364664Courtesy of GENERAL MOTORS COMPANY
  4. Remove Catalytic Converter Brace Bracket Bolt (1)
  5. Raise and support the vehicle. Lifting and Jacking the Vehicle
  6. Fig 3: Exhaust Front Pipe And Gasket
    GM4360853Courtesy of GENERAL MOTORS COMPANY
  7. Remove Exhaust Front Pipe (1) - Exhaust Front Pipe Replacement (LCV) 
  8. Fig 4: Catalytic Converter Brace Bracket-Lower
    GM4364612Courtesy of GENERAL MOTORS COMPANY
  9. Remove Catalytic Converter Brace Bracket-Lower (3) - Catalytic Converter Brace Bracket Replacement (Upper, LCV) Catalytic Converter Brace Bracket Replacement (Lower, LCV) 
  10. Lower the vehicle.
  11. Fig 5: Catalytic Converter Nut
    GM4364734Courtesy of GENERAL MOTORS COMPANY
  12. Remove Catalytic Converter Nut (1)
  13. Remove Warm Up Three-Way Catalytic Converter (2)
  14. Remove Catalytic Converter Gasket (3) and DISCARD