GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1530236  Size: SH
  1. Remove the exhaust camshaft position actuator bolt.
  2. Remove the exhaust camshaft position actuator.

  3. Object Number: 637575  Size: SH
  4. Remove the intake camshaft sprocket bolt.
  5. Remove the intake camshaft sprocket.
  6. Remove the timing chain.
  7. Remove the crankshaft sprocket.