GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1858799  Size: SH
  1. Remove the left exhaust camshaft actuator. Refer to Camshaft Position Actuator Replacement - Bank 2 (Left Side) Exhaust .
  2. Remove the intake camshaft position actuator bolt.
  3. Remove the left intake camshaft position actuator.

Installation Procedure


    Object Number: 1858799  Size: SH
  1. Locate the intake camshaft position actuator to the camshaft and loosely install the bolt.
  2. 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.

  3. Tighten the camshaft position actuator bolt. Refer to Camshaft Position Actuator Installation - Left Side Intake .
  4. Install the left exhaust camshaft actuator. Refer to Camshaft Position Actuator Replacement - Bank 2 (Left Side) Exhaust .