GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Saturn
🢒
2009
🢒
AURA
🢒
Engine
🢒
Engine Cooling
🢒 Engine Coolant Thermostat Replacement
Engine Coolant Thermostat Replacement LAT
Removal Procedure
Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Reposition the radiator outlet hose clamp at the thermostat cover.
Remove the radiator outlet hose from the thermostat cover.
Remove the battery tray. Refer to
Battery Tray Replacement
.
Remove the thermostat cover bolts and cover.
Remove the thermostat.
Remove and discard the thermostat cover O-ring seal.
Installation Procedure
Install a NEW thermostat cover O-ring seal.
Install the thermostat.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the thermostat cover bolts and tighten to
10 N·m (89 lb in)
.
Install the battery tray. Refer to
Battery Tray Replacement
.
Install the radiator outlet hose to the thermostat cover.
Position the radiator outlet hose clamp at the thermostat cover.
Fill the cooling system. Refer to
Cooling System Draining and Filling
.
Engine Coolant Thermostat Replacement LY7
Removal Procedure
Partially drain the cooling system. Refer to
Cooling System Draining and Filling
.
Remove the radiator outlet hose from the thermostat housing.
Remove the heater inlet and outlet hoses.
Remove the surge tank outlet hose.
Remove the thermostat housing bolts (1).
Remove the housing.
Remove the thermostat (2) and discard the thermostat gasket.
Installation Procedure
Install the thermostat (2) with a NEW thermostat gasket.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the thermostat housing bolts (1) and tighten to
10 N·m (89 lb in)
.
Install the surge tank outlet hose.
Install the heater inlet and outlet hoses.
Install the radiator outlet hose to the thermostat housing.
Fill the cooling system. Refer to
Cooling System Draining and Filling
.