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Home › Buick › 2018 › Enclave Base › Repair and Diagnosis › Engine Mechanical › Exhaust System › Repair Instructions › Exhaust Front Muffler Replacement › Installation Procedure

Installation Procedure

  1. GM4751671
    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. GM4751549
    CAUTION:

    Refer to Fastener Caution .

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

  4. GM4751000

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

  5. GM4751549

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

  6. GM4751000

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

  7. GM4749861

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

  8. GM4749707

    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)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (FWD)
  10. GM4296820

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

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