Engine Coolant Temperature Sensor Ford Fiesta 1.6L 2008-2019 Location and Replacement

Are you trying to find or replace the Engine Coolant Temperature (ECT) sensor on your Ford Fiesta 1.6L but having an incredibly hard time spotting it under the hood? You’ve come to the right place!

In this video, I will show you the exact, precise location of the coolant temperature sensor so you can see exactly where it is hidden and get straight to work. On the Ford 1.6L four-cylinder engine, this sensor is tucked away in a tight, recessed area that can be highly frustrating to find or access if you are searching blindly through the coolant hoses and wiring bundles. Watching this quick, direct guide will save your time, eliminate the guesswork, and prevent you from pulling off the wrong electrical connectors.

⚠️ Common Symptoms of a Bad Coolant Temperature Sensor:

The ECT sensor monitors engine warmth so the computer can adjust fuel delivery and control the cooling fans. When it fails or sends erratic readings on your Ford Fiesta, it triggers these clear warning signs:

• Radiator Fan Runs Constantly at High Speed: The electric cooling fan kicks into loud, high-speed mode the moment you turn on the car (and stays running) because the computer goes into a safety fail-safe mode.
• Erratic Temperature Gauge Readings: The needle or digital gauge on your dashboard fluctuates wildly, drops to zero suddenly, or stays completely cold even after driving for an hour.
• Hard Starting & Poor Idle: The engine cranks for a long time or struggles to start when cold because the computer doesn’t know the engine needs a richer fuel mixture.
• Drop in Fuel Economy & Black Smoke: A failing sensor can make the computer think the engine is permanently ice-cold, causing your 1.6L engine to dump too much fuel, idle rough, and burn through gas.
• Check Engine Light (CEL): Frequently triggering specific diagnostic trouble codes such as P0117, P0118, or P0128.

If your Fiesta’s fan is screaming non-stop or your temp gauge is acting crazy, finding and replacing this small sensor is your absolute first step. Watch the video to see exactly where it is hidden on the engine assembly so you can complete your replacement quickly and safely!