GM Service Manual Online
For 1990-2009 cars only

    Object Number: 637656  Size: SH
  1. Install the thermostat housing.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 10 N·m (89 lb in).