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.
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HOMESERVICE MANUALSFORD2012FUSION FWD L4-2.5LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTCOOLING SYSTEMENGINE - COOLANT TEMPERATURE SENSOR/SWITCHENGINE TEMPERATURE SENSORSERVICE AND REPAIR
2012 Ford Fusion FWD L4-2.5L
Engine Temperature Sensor: Service and Repair
2012 Ford Fusion FWD L4-2.5LSECTION Service and Repair
Cylinder Head Temperature (CHT) Sensor
Removal and Installation
1. Detach the Cylinder Head Temperature (CHT) sensor cover and position aside.
2. Disconnect the CHT (Cylinder Head Temperature) sensor electrical connector.
3. Remove the CHT (Cylinder Head Temperature) sensor.
- To install, tighten to 12 Nm (106 lb-in).
4. To install, reverse the removal procedure.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.