GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Rainier 🢒 Engine 🢒 Engine Mechanical - 4.2L 🢒 Timing Chain and Sprocket Removal

    Object Number: 637766 Size: SH
  1. Remove the top chain guide bolts.
  2. Remove the top chain guide.

    3. Object Number: 637783 Size: SH
  3. Remove the exhaust camshaft position actuator bolt.
  4. Remove the exhaust camshaft position actuator.

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