GM Service Manual Online
For 1990-2009 cars only

Cylinder Head Replacement Left

Removal Procedure

  1. Remove the following subassemblies:
  2. • The exhaust manifold. Refer to Exhaust Manifold Replacement .
    • The generator. Refer to Generator Replacement in Engine Electrical.
    • The water crossover. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
    • The intake manifold. Refer to Intake Manifold Replacement .
    • The camshaft cover. Refer to Camshaft Cover Replacement .
    • The engine front cover. Refer to Engine Front Cover Replacement .
    • The secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement .

    Object Number: 105265  Size: SH
  3. Remove the power steering return hose retaining bolt from the cylinder head.
  4. Remove the cylinder head. Refer to Cylinder Head Removal .
  5. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .

Installation Procedure

  1. Install the cylinder head. Refer to Cylinder Head Installation .

  2. Object Number: 105265  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 power steering return hose retaining bolt to the cylinder head.
  4. Tighten
    Tighten the power steering return hose retaining bolt to 50 N·m (37 lb ft).

  5. Install the following subassemblies:
  6. • The secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement .
    • The engine front cover. Refer to Engine Front Cover Replacement .
    • The camshaft cover. Refer to Camshaft Cover Replacement .
    • The intake manifold. Refer to Intake Manifold Replacement .
    • The water crossover. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
    • The generator. Refer to Generator Replacement in Engine Electrical.
    • The exhaust manifold. Refer to Exhaust Manifold Replacement .

Cylinder Head Replacement Right

Removal Procedure

  1. Remove the following subassemblies:
  2. • The right exhaust manifold. Refer to Exhaust Manifold Replacement .
    • The water crossover. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
    • The intake manifold. Refer to Intake Manifold Replacement .
    • The camshaft cover. Refer to Camshaft Cover Replacement .
    • The engine front cover. Refer to Engine Front Cover Replacement .
    • The right secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Removal .

    Object Number: 588929  Size: SH
  3. Disconnect the electrical connector (2) from the ECT sensor.
  4. Remove the nut (3) securing the coil cassette ground wire to the cylinder head.
  5. Remove the bolt securing the exhaust crossover pipe to the cylinder head.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the bolt securing the right transaxle mount bracket to the cylinder head.

  8. Object Number: 588757  Size: SH
  9. Remove the bolt (2) securing the rear transaxle brace (1) to the transaxle.
  10. Lower the vehicle.
  11. Remove the nuts (3) securing the rear transaxle brace (1) to the cylinder head.
  12. Remove the rear transaxle brace.
  13. Remove the right cylinder head. Refer to Cylinder Head Removal .
  14. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .

Installation Procedure

  1. Install the right cylinder head. Refer to Cylinder Head Installation .

  2. Object Number: 588757  Size: SH
  3. Position the rear transaxle brace over the studs located at the rear of the right cylinder head.
  4. Loosely install the nuts (3) securing the rear transaxle brace (1) to the cylinder head.
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. 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.

  7. Install the bolt (2) securing the rear transaxle brace (1) to the transaxle.
  8. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

  9. Install the bolt securing the right transaxle mount bracket to the cylinder head.
  10. Tighten
    Tighten the right transaxle mount bracket bolt to 50 N·m (37 lb ft).

  11. Lower the vehicle.
  12. Tighten the nuts installed in step 3.
  13. Tighten
    Tighten the rear transaxle brace nuts to 50 N·m (37 lb ft).


    Object Number: 588929  Size: SH
  14. Connect the electrical connector (2) to the ECT sensor.
  15. Install the bolt securing the exhaust crossover pipe to the cylinder head.
  16. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).

  17. Install the nut (3) securing the coil cassette ground wire to the cylinder head.
  18. Tighten
    Tighten the nut to 17 N·m (13 lb ft).

  19. Install the following subassemblies:
  20. • The right secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Installation .
    • The engine front cover. Refer to Engine Front Cover Replacement .
    • The camshaft cover. Refer to Camshaft Cover Replacement .
    • The intake manifold. Refer to Intake Manifold Replacement .
    • The water crossover. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
    • The right exhaust manifold. Refer to Exhaust Manifold Replacement .