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Home >> Buick >> 2016 >> Cascada Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Exhaust System Replacement >> Removal Procedure
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Removal Procedure

WARNING:

Refer to Exhaust Service Warning .

WARNING:

Refer to Protective Goggles and Glove Warning .

WARNING:

Refer to Hot Exhaust System Warning .

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the underbody brace - front. Refer to Underbody Brace Replacement - Front .
  3. Remove the underbody brace - middle X-rod. Refer to Underbody Brace Replacement - Middle X-Rod .
  4. Remove the underbody brace - rear V-rod. Refer to Underbody Brace Replacement - Rear V-Rod .
  5. Remove the exhaust rear auxiliary muffler. Refer to Exhaust Rear Auxiliary Muffler Replacement .
  6. Remove the exhaust rear muffler. Refer to Exhaust Rear Muffler Replacement ,
  7. Remove the exhaust muffler. Refer to Exhaust Muffler Replacement .
    8. Fig 1: Exhaust Pipe Front Hanger Bracket, Insulators, Nuts And Bolts
    GM2027832Courtesy of GENERAL MOTORS COMPANY
  8. Support the exhaust front pipe.
  9. Remove and DISCARD the 2 drivetrain and front suspension frame support bolts (5).
  10. Remove the 2 exhaust pipe front hanger bracket bolts (4).
  11. Remove the 2 exhaust pipe front hanger bracket insulator nuts (3).
  12. Remove the exhaust pipe front hanger bracket (2).
  13. Remove the 2 exhaust pipe front hanger bracket insulators (1).
    14. Fig 2: Heated Oxygen Sensor
    GM2027831Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A second technician is required.

  14. Remove the heated oxygen sensor (1).
  15. Remove and DISCARD 3 catalytic converter to exhaust pipe nuts (3).
  16. Remove the exhaust front pipe (2) from the catalytic converter.
  17. Remove the catalytic converter to exhaust to exhaust pipe gasket (4).
  18. Remove the exhaust system.
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