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Home >> Lincoln >> 1995 >> Mark VIII Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation 4.6L >> Computerized Engine Controls >> Input Devices >> Engine Coolant Temperature (ECT) Sensor

Engine Coolant Temperature (ECT) Sensor

ECT sensor inputs coolant temperature to the PCM. ECT sensor is threaded into heater outlet fitting or coolant passage. The ECT sensor changes resistance in response to coolant temperature. The ECT sensor resistance decreases as coolant temperature increases. On models with an electronic instrument cluster, an additional ECT is used as a coolant temperature indicator.

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