GM Service Manual Online
For 1990-2009 cars only

    Object Number: 54378  Size: SH
  1. Remove the knock sensor.
  2. Remove the crankshaft position sensor retaining bolt.
  3. Remove the crankshaft position sensor.
  4. Remove the camshaft position sensor retaining bolt.
  5. Remove the camshaft position sensor.
  6. Remove the expansion plugs.