GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 3.6L (LY7) 🢒 Engine Coolant Thermostat Housing Installation

    Object Number: 1665647 Size: SH
  1. Install the NEW thermostat housing O-ring.

    2. Object Number: 1665646 Size: SH
  2. Install the thermostat housing.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the thermostat housing bolts.

    4. Tighten
    Tighten the thermostat housing bolt to 10 N·m (89 lb in).


    Object Number: 1665645 Size: SH
  4. Install the NEW thermostat housing assembly O-ring and gasket.

    5. Object Number: 902889 Size: SH
  5. Install the thermostat housing assembly.
  6. Install the thermostat housing assembly bolts.

    7. Tighten
    Tighten the thermostat housing assembly bolt to 10 N·m (89 lb in).


    Object Number: 1665644 Size: SH
  7. Install the NEW heater inlet/outlet pipe assembly O-ring and gasket.

    8. Object Number: 946082 Size: SH
  8. Install the heater inlet/outlet pipe assembly.
  9. Install the heater inlet/outlet pipe assembly bolts.

    10. Tighten
    Tighten the heater inlet/outlet pipe assembly bolt to 10 N·m (89 lb in).