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Home >> Buick >> 2021 >> Enclave Essence, AWD >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Exhaust Front Muffler Replacement >> Installation Procedure

Installation Procedure

  1. GM4751671Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Install NEW gaskets.

    Catalytic Converter Gasket (2) - Install [ 2x ]

  2. With the aid of an assistant, fit the exhaust front muffler assembly (1) to the vehicle.
  3. GM4751549Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Exhaust Front Pipe Nut (1) - Install and hand tighten [ 2x ]

  4. GM4751000Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Install and hand tighten [ 2x ]

  5. GM4751549Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Tighten [ 2x ] 58 N.m (43 lb-ft)

  6. GM4751000Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut (1) - Tighten [ 2x ] 58 N.m (43 lb-ft)

  7. GM4749861Courtesy of GENERAL MOTORS COMPANY

    Exhaust Intermediate Hanger (2) - Install - Exhaust Intermediate Hanger Replacement 

  8. GM4749707Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (2) @ Exhaust Front Muffler - Connect - Exhaust Muffler Replacement 

  9. Heated Oxygen Sensor-Bank 1 Sensor 2 - Connect - Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (AWD) , or Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (FWD)
  10. GM4296820Courtesy of GENERAL MOTORS COMPANY

    Front Cradle Brace (2) - Install - Front Cradle Brace Replacement