For 1990-2009 cars

### Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
3. Reposition the radiator outlet hose clamp (1) at the thermostat housing.
4. Remove the radiator outlet hose from the thermostat housing.
5. Remove the thermostat housing cover bolts and cover.
6. Remove the thermostat.
7. Remove and discard the thermostat housing O-ring seal.

### Installation Procedure

1. Install a NEW thermostat housing cover O-ring seal onto the housing.
2. Install the thermostat.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the thermostat housing cover and bolts.

Tighten
Tighten the bolts to 10 N·m (89 lb in).

4. Install the radiator outlet hose to the thermostat housing.
5. Reposition the radiator outlet hose clamp (1) at the thermostat housing.
6. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
7. Fill the cooling system. Refer to Cooling System Draining and Filling .