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Engine Tempture Sensor


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How do you check the engine tempture sensor is working , I have no engine management light on but my fan has stopped working I have had a new water pump and thermostat fitting but still no change.


Fiesta studio

1.25 durotec engine

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It might sound a bit obvious but does the temperature gauge on the instrument cluster work ?

If the gauge is working, the sensor is ok, the system has a fail safe so should the sensor fail (or you disconnect the sensor) the fan will run continuously.

If the gauge works but the fan fails to run possible reasons are;

The cooling fan relay in the central fusebox.

The fuse in the battery junction box

The fan itself.

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