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Home >> Chevrolet >> 2006 >> HHR LS, Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Exhaust Manifold Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Identifying Exhaust Manifold
    GM1631764Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW exhaust manifold gasket onto the studs.
  2. Install the exhaust manifold.
    3. Fig 2: Exhaust Manifold Tightening Sequence
    GM60046Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    IMPORTANT: Install the new exhaust nuts.
  3. Install NEW exhaust manifold nuts.

    Tighten:  Tighten the nuts in the sequence shown to 14 N.m (10 lb ft).

  4. Install the catalytic converter. Refer to Catalytic Converter Replacement .
  5. Install the pre catalyst HO2S. Refer to Heated Oxygen Sensor Replacement - Position 1 or Heated Oxygen Sensor Replacement - Position 1 .
  6. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement .
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