Malibu V6-3.9L (2007)
Thermostat: Specifications
Temperature Range
When the coolant temperature is below 91°C (195°F), the thermostat valve remains closed. This prevents circulation of the coolant to the radiator and
allows the engine to warm up quickly. After the coolant temperature reaches 91°C (195°F), the thermostat valve will open.
Cooling System
Thermostat Full Open Temperature ................................................................................................................................. 195 degrees (2.2L), (3.5L), (3.9L)