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When a car is turn off the water stops circulating, but heat is still being conducted from the warm engine into the water. Aslo warm water rises and the temperatue sender unit is usually placed near the op of the eingine. This causes the temp to rise slightly after turning the engine off

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โˆ™ 2007-07-12 11:48:50
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Q: Why does a cars temperature gauge go up when the motor has been turned off?
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