GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1852276  Size: SH
  1. Ensure the proper camshaft position actuator is installed. Observe the body of the camshaft position actuator for the "IN" marking (3). The marking is for an intake camshaft position actuator.

  2. Object Number: 1853919  Size: SH

    Caution: Ensure the proper camshaft position actuator is installed in the correct position. Failure to install the proper camshaft position actuator can effect engine performance and set an engine code.

  3. Ensure the proper camshaft position actuator is being installed. The reluctor wheel on the intake camshaft position actuator bank 1 (1) is indexed in a different position compared to the intake camshaft position actuator bank 2 (2).

  4. Object Number: 1853925  Size: SH
  5. On the intake camshaft actuator bank 1 the edge of the reluctor wheel (1) lines up with the valley (2) of the sprocket tooth.

  6. Object Number: 1852276  Size: SH
  7. Ensure the proper timing mark is used. Observe the outer ring of the camshaft position actuator for the triangle marking (2). The triangle marking is for alignment to the highlighted timing chain link on the right side of the engine.

  8. Object Number: 2026689  Size: SH

    Caution: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. 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.

  9. Install the intake camshaft position actuator bank 1 (2).
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Install the intake camshaft position actuator bolts bank 1 (1) and tighten to  58 N·m (43 lb ft).