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Home >> Ford >> 1992 >> Thunderbird Base, 3.8 4 >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Automatic >> Operation >> Function Controls >> Cold Engine Lock-Out Function

Cold Engine Lock-Out Function

During cold weather, engine coolant temperature switch controls cold engine lock-out function when ATC system is set for AUTO operation. During lock-out, fan will not operate until engine coolant temperature is above 100°F (38°C). Switch is located in heater inlet hose.

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