Engine Coolant Temperature (ECT) Sensor - Transit

WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The ECT sensor is located on the upper coolant inlet housing. The ECT sensor measures the temperature of the engine coolant and provides a feedback signal to the PCM. The PCM uses the ECT sensor input for cooling fan control, EGR flow, fuel quantity, and injection timing calculations.

Courtesy of FORD MOTOR CO.