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My car stopped overheating.

All of a sudden my car has stopped over heating and I dont know why. Usually driving down a motorway about 70/80 would cause the temp to get over 100C which didnt fill me with confidence.

 

A few days ago I was doing something to my car and I disconnected the battery for over 24 hours, so the ECU was reset, driving today on the motorway between 70/80 when its 27C outside and the temperature never went over 85C. Driving round normal roads and the temp dropped to 60ish. What could have happened to make the temp drop so much?

 

Stuart

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    I was thinking that but its not ECU controlled is it?

     

    I thought it was automatic.

     

    Stuart

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    it could be coincedental?!

     

    the only thing that could be influenced by the ECU would be the electric cooling fan.

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    Could the ECU be doing something before causing it to over heat? Wrong timing? Wrong mixture?

     

    Stuart

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    it would have to be quite extreme to increase the temp by that much, i would have thought it would be pinking its nuts off if that was the case & you would notice performance problems too

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