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Home >> Buick >> 2018 >> Encore Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Exhaust Front Pipe Replacement (2H0) >> Removal Procedure

Removal Procedure

WARNING:

Refer to Exhaust Service Warning .

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the heated oxygen sensor - position 2 harness connector.
  3. GM2780600

    Remove the 2 fasteners (3) securing the exhaust muffler (4) to the exhaust front pipe (1).

    NOTE:

    Do not twist or damage the flex coupling.

  4. Discard the exhaust front pipe gasket (2).
  5. GM2780474

    Remove the 3 fasteners (1) securing the exhaust front pipe (3) to the catalytic converter.

  6. Discard the exhaust front pipe gasket (2).
  7. Remove the exhaust front pipe (3).
  8. If you are replacing the exhaust front pipe, transfer the heated oxygen sensor.