F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
The Engine Coolant Temperature (ECT) sensor changes resistance in response to changing temperature of the engine coolant. The sensor resistance
decreases as the engine coolant temperature increases providing a signal to the Powertrain Control Module (PCM) indicating the temperature of the
engine coolant.
