GM Service Manual Online
For 1990-2009 cars only

    Warning: Refer to Cleaning Solvent Warning in the Preface section.


    Object Number: 1557717  Size: SH
  1. Clean the camshaft position actuator components with solvent.
  2. Warning: Refer to Safety Glasses Warning in the Preface section.

  3. Dry the camshaft position actuator components with compressed air.
  4. Inspect the camshaft position actuator for the following conditions:
  5. • The camshaft position actuator mounting bores (1) for damage
    • The camshaft position actuator return spring (2) for nicks or damage
    • The camshaft position actuator valve surface for pitting or damage (3)
  6. Replace the camshaft position actuator as necessary.