Removal & Installation: Thermostat: Inspection
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1997 Dodge Avenger, 1997 Chrysler Sebring, 1996 Dodge Avenger, 1996 Chrysler Sebring, and 1995 Dodge Avenger. However, it is still accessible from the selected car via links, so may be relevant.
Ensure thermostat valve is closed at room temperature. Check for damage or defects. Check for and remove any contamination of rust on valve. Place thermostat in a container of hot water. Thermostat should begin to open at 180°F (82°C) and be fully open, .35" (9 mm), at 203°F (95°C).