GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Replacement 2.2L

Removal Procedure


    Object Number: 3295  Size: SH
  1. Remove the oxygen sensor lead.
  2. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  3. Remove the generator rear brace.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the exhaust pipe to the exhaust manifold.
  6. Lower the vehicle.
  7. Remove the oil fill tube. Refer to Oil Level Indicator and Tube Replacement .

  8. Object Number: 182885  Size: SH
  9. Remove the exhaust manifold nuts.
  10. Remove the exhaust manifold and the gasket.
  11. Clean the mating surfaces at the cylinder head and the exhaust manifold.
  12. Inspect the manifold for cracks, broken flanges and gasket surface damage.
  13. Check the alignment of the exhaust manifold mating surfaces. Use a straight edge and a feeler gauge. If the flanges or the mating surfaces do not align, the manifold is warped and should be replaced.

Installation Procedure


    Object Number: 182885  Size: SH
  1. Install the exhaust manifold gasket.
  2. Install the exhaust manifold.
  3. 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.

  4. Install the exhaust manifold nuts.
  5. Tighten
    Tighten the exhaust manifold nuts to 13 N·m (115 lb in).

  6. Install the oil fill tube. Refer to Oil Level Indicator and Tube Replacement .
  7. Raise the vehicle.
  8. Install the exhaust pipe to the manifold. Refer to Intermediate Pipe Replacement .
  9. Lower the vehicle.
  10. Install the generator rear brace.
  11. Install the generator. Refer to Generator Replacement in Engine Electrical.

  12. Object Number: 3295  Size: SH
  13. Install the oxygen sensor lead.