GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Replacement Right Side

Removal Procedure


    Object Number: 42940  Size: SH
  1. Remove the exhaust pipe from the exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  2. Disconnect the oxygen sensor electrical connector.
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Control.
  4. Remove the bolt for the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .

  5. Object Number: 176061  Size: SH
  6. Remove the exhaust manifold bolts.
  7. Remove the exhaust manifold. Refer to Exhaust Manifold Removal (Right) .
  8. Clean all sealing surfaces. Refer to Exhaust Manifold Clean and Inspect .

Installation Procedure


    Object Number: 176061  Size: SH
  1. Install the exhaust manifold. Refer to Exhaust Manifold Installation (Right) .

  2. Object Number: 173203  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the bolt for the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
  4. Tighten
    Tighten the bolt to 12 N·m (106 in lb).

  5. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.
  6. Install the exhaust pipe to the exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  7. Connect the oxygen sensor electrical connector.

Exhaust Manifold Replacement Left Side

Removal Procedure


    Object Number: 42940  Size: SH
  1. Remove the exhaust pipe from the exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  2. Disconnect the oxygen sensor electrical connector.

  3. Object Number: 173206  Size: SH
  4. Disconnect the EGR inlet pipe from the exhaust manifold. Refer to Exhaust Gas Recirculation Valve Replacement in Engine Controls.

  5. Object Number: 176061  Size: SH
  6. Remove the exhaust manifold bolts.
  7. Remove the exhaust manifold. Refer to Exhaust Manifold Removal (Left) .
  8. Clean all sealing surfaces. Refer to Exhaust Manifold Clean and Inspect .

Installation Procedure


    Object Number: 176061  Size: SH
  1. Install the exhaust manifold. Refer to Exhaust Manifold Installation (Right) .

  2. Object Number: 173206  Size: SH
  3. Connect the EGR inlet pipe to the manifold. Refer to Exhaust Gas Recirculation Valve Replacement in Engine Controls.
  4. Install the exhaust pipe to the exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  5. Connect the oxygen sensor electrical connector.