GM Service Manual Online
For 1990-2009 cars only

    Object Number: 159185  Size: SH
  1. Remove the coolant pipe/engine lift bracket bolt (2) from the cylinder head.

  2. Object Number: 142123  Size: SH
  3. Twist the coolant pipe to remove.

  4. Object Number: 217363  Size: SH
  5. Remove the thermostat housing bolts (1).
  6. Remove the thermostat housing (2).