Cougar/XR7 V8-4.6L VIN W (1997)
Heater Core Temperature Sensor / Switch: Description and Operation
TEMPERATURE CONTROL LOCKOUT VALVE AND SWITCH
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Its function is to prevent operation of the blower motor when the engine coolant temperature is below 45°C (113°F).
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When the coolant temperature exceeds 45°C (113°F), the temperature control lockout valve and switch opens, turning the blower motor on.
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The temperature control lockout valve and switch will not prevent A/C blower motor operation when defrost is required.
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The temperature control lockout valve and switch is located in the heater core inlet hose tube in the engine compartment.
