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Why is your temperature sensor going hot then cold?

Updated: 8/17/2019
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15y ago

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your thermostat could be wearing out. what happens then is that it wont open until the engine gets abnormally hot, then as the coolant flows through the engine, it gets cooler, and so it closes, then once it gets real hot again, it opens. so on and so forth. steinbacher682@hotmail.com

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15y ago
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Q: Why is your temperature sensor going hot then cold?
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