GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1254509  Size: SH

    Notice: DO NOT remove the camshaft position actuator magnet unless it needs to be replaced. The camshaft position actuator magnet is precisely aligned to the camshaft position actuator oil control valve on the end of the camshaft during engine assembly. If the camshaft position actuator magnet is removed and/or needs to be replaced, it will be necessary to realign the camshaft position actuator magnet to the camshaft position actuator oil control valve after the camshaft position actuator housing is installed to the cylinder head. Failure to realign the camshaft position actuator magnet to the camshaft position actuator oil control valve can lead to poor engine performance and engine component damage.

  1. If removed, loosely mount the camshaft position actuator magnet and bolts.
  2. In order to allow for camshaft position actuator magnet to camshaft position actuator oil control valve alignment, DO NOT install the NEW camshaft position actuator magnet alignment plugs.

  3. Object Number: 1040910  Size: SH

    Important: The camshaft position actuator housing alignment pins must be installed in order to precisely align the camshaft position actuator housing to the cylinder head.

  4. Install the camshaft position actuator housing alignment pins.
  5. Install the NEW camshaft position actuator housing gasket.