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Thermostat, Engine Cooling|Service and Repair > < Thermostat, Engine Cooling|Description

Grand Cherokee 2WD V6-3.7L (2008)

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Thermostat: Description and Operation
Operation

OPERATION

The wax pellet is located in a sealed container at the spring end of the thermostat. When heated, the pellet expands, overcoming closing spring tension
and water pump pressure to force the valve to open.

Thermostat, Engine Cooling|Service and Repair > < Thermostat, Engine Cooling|Description