GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the intake manifold. Refer to Intake Manifold Replacement.
  2. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement.
  3. Remove the timing belt tensioner. Refer to Timing Belt Tensioner Replacement.

  4. Object Number: 2026830  Size: SH
  5. Remove the 2 engine oil cooler pipe bolts (1).
  6. Remove the engine oil cooler pipe (2).
  7. Disconnect the 3 coolant hoses from coolant flange.
  8. Remove the camshaft cover. Refer to Camshaft Cover Replacement.
  9. Remove the cylinder head. Refer to Cylinder Head Removal.
  10. Remove the 2 camshaft position sensor. Refer to Camshaft Position Sensor Replacement.
  11. Remove the 2 camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve Replacement.
  12. Remove the 2 camshaft position actuator adjuster. Refer to Camshaft Position Actuator Adjuster Removal.
  13. Remove the timing belt rear cover. Refer to Timing Belt Rear Cover Removal.
  14. Remove thermostat housing. Refer to Engine Coolant Thermostat Housing Removal.

Installation Procedure

  1. Install thermostat housing. Refer to Engine Coolant Thermostat Housing Installation.
  2. Install the timing belt rear cover. Refer to Timing Belt Rear Cover Installation.
  3. Install the camshaft position actuator adjuster. Refer to Camshaft Position Actuator Adjuster Installation.
  4. Install the camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve Replacement.
  5. Install the 2 camshaft position sensor. Refer to Camshaft Position Sensor Replacement.
  6. Install the cylinder head. Refer to Cylinder Head Installation.
  7. Install the camshaft cover. Refer to Camshaft Cover Replacement.
  8. Connect the 3 coolant hoses from coolant flange.

  9. Object Number: 2026830  Size: SH
  10. Install the engine oil cooler pipe (2).
  11. Caution: Refer to Fastener Caution in the Preface section.

  12. Install the 2 engine oil cooler pipe bolts (1) and tighten to  9 N·m (80 lb in).
  13. Install the timing belt tensioner. Refer to Timing Belt Tensioner Replacement.
  14. Install the exhaust manifold. Refer to Exhaust Manifold Replacement.
  15. Install the intake manifold. Refer to Intake Manifold Replacement.
  16. Fill the cooling system. Refer to Cooling System Draining and Filling.
  17. Check and correct the engine oil.