GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1579073  Size: SH
  1. Remove the right exhaust camshaft actuator. Refer to Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust .
  2. Remove the intake camshaft position actuator bolt.
  3. Remove the right intake camshaft position actuator.

Installation Procedure


    Object Number: 1579310  Size: SH
  1. Ensure the proper camshaft position actuator is installed. Observe the body of the camshaft position actuator for the IN marking (3).
  2. The marking is for the intake camshaft position actuator.

  3. Ensure the proper timing mark is used. Observe the outer ring of the camshaft position actuator for the R and triangle marking (2).
  4. The marking is for alignment to the highlighted timing chain link on the right side of the engine.


    Object Number: 1579073  Size: SH
  5. Locate the intake camshaft position actuator to the camshaft and loosely install the bolt.
  6. Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.

    Important: Use an open-end wrench at the camshaft hex to prevent camshaft/engine rotation.

  7. Tighten the camshaft position actuator bolt. Refer to Camshaft Position Actuator Installation - Right Side Intake .
  8. Install the right exhaust camshaft actuator. Refer to Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust .