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

Removal Procedure

WARNING:

Refer to Exhaust Service Warning .

  1. GM4296820

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

  2. Heated Oxygen Sensor-Bank 1 Sensor 2 - Disconnect - Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (AWD)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (FWD)
  3. GM4749707

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

  4. GM4749861

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

  5. GM4751000

    Exhaust Front Pipe Nut (1) - Remove [2x]

  6. GM4751549

    Exhaust Front Pipe Nut (1) - Remove [2x]

  7. GM4751671

    With the aid of an assistant, lower the exhaust front muffler assembly (1) from the vehicle.

  8. Catalytic Converter Gasket (2) - Remove and DISCARD [2x]
  9. Transfer components as necessary.