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Coolant sensor trouble

Hewe
Hewe
in Ford Fusion Club

Featured Replies

Hi I have just replaced my coolant sensor on Ford Fusion it worked for a few hours, then the temperature  gauge stopped working,maybe a dud sensor .or could there be a some thing else coursing the problem,thank you . Keith 

  • Quote


    See thread in Fiesta, EdGasket is also having fun with his.

    When you say "the temperature  gauge stopped working", do you mean shows hot or cold ?  If cold I would check your connections.  Is the CTS from  Ford, or another supplier ?

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    • Author

    It’s not reading,at all ,I got the sensor from amazon,Chinese i think,it did work for a while about a hour . Engine warning light is on. Thank you for your reply 

  • Quote

    You need to measure the resistance across the sensor; should be around 40K ohm or more at ambient. You need to get an obd2 code reader and see what code was logged and then clear it. Maybe the sensor has gone short or open circuit and the check light is on because of a logged fault code re. the temp sensor.

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    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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