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

Installation Procedure

  1. GM2780474

    Install the exhaust front pipe (3) to the catalytic converter with a NEW gasket (2) and hand tighten the fasteners (1).

  2. GM2780600
    CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Do not twist or damage the flex coupler.

    Install the exhaust front pipe (1) to the exhaust muffler (4) with a NEW gasket (2) and tighten the fasteners (3) to 17 N.m (13 lb ft).

  3. GM2780474

    Tighten the exhaust front pipe fasteners (1) to 22 N.m (16 lb ft).

  4. Connect the heated oxygen sensor - position 2 to the engine wiring harness.
  5. Start the engine and check for exhaust leaks.