GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 45059 Angle Meter

Removal Procedure


    Object Number: 1772477  Size: SH
  1. Remove the camshaft position (CMP) actuator magnet. Refer to Camshaft Position Actuator Magnet Replacement.
  2. Remove and discard the CMP actuator solenoid valve.

Installation Procedure


    Object Number: 1772477  Size: SH
  1. Install the a NEW CMP actuator solenoid valve until snug.
  2. With the CMP actuator properly positioned onto the camshaft, the CMP actuator solenoid valve can be threaded completely into the camshaft using light hand pressure. Tighten by hand until snug.

    Caution: Refer to Fastener Caution in the Preface section.

  3. Tighten the CMP actuator solenoid valve.
  4. Tighten

    1. Tighten the solenoid valve a first pass to 65 N·m (48 lb ft).
    2. Tighten the solenoid valve a final pass and additional 90 degrees using J 45059 .
  5. Install the CMP actuator magnet. Refer to Camshaft Position Actuator Magnet Replacement.