Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Ford Fusion AWD V6-3.0LFACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE (ECT) SENSOR

Removal and Installation
1. Drain the cooling system.
2. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
3. Remove the ECT sensor.
- Pull upward on the locking tab.
- Rotate the sensor counterclockwise and remove.

4. To install, reverse the removal procedure.
Removal and Installation
1. Drain the cooling system.
2. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
3. Remove the ECT sensor.
- Pull upward on the locking tab.
- Rotate the sensor counterclockwise and remove.
4. To install, reverse the removal procedure.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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