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 MANUALSMERCURY2010MOUNTAINEER AWD V6-4.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)SERVICE AND REPAIR
2010 Mercury Mountaineer AWD V6-4.0L
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
2010 Mercury Mountaineer AWD V6-4.0LSECTION Service and Repair
Engine Coolant Temperature (ECT) Sensor - 4.0L SOHC
Removal and Installation
1. Drain the cooling system. For additional information, refer to Cooling System &/or Engine Block Heater.
2. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.
3. Remove the clip and the ECT sensor.
4. To install, reverse the removal procedure.
RENDER: 1.0x
NO RELATED
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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.