ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Specifications|Page 2450 > < Thermostat, Engine Cooling|Specifications|Page 2448
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Thermostat: Description and Operation

DESCRIPTION

The water thermostat ensures rapid engine warm-up by restricting engine coolant flow at lower operating temperatures. It also assists in keeping
the engine operating temperature within predetermined limits.

COLD

When the coolant is cold, the water thermostat (8575) is in the closed position and the coolant flow is restricted to the cylinder block (6010),
cylinder heads (6049), intake manifold (9424) and heater core.

HOT

As the temperature increases, the water thermostat opens, allowing a portion of the coolant to pass into the radiator (8005).

Thermostat, Engine Cooling|Specifications|Page 2450 > < Thermostat, Engine Cooling|Specifications|Page 2448