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Certainly. If the engine coolant is flowing freely into the radiator, it will remain quite cool and the coolant that circulates into the heater core will never warm up. The thermostat blocks the coolant from entering into the radiator if the temperature is below the set level on the thermostat. Usually 185, or 195 degrees F. Engines don't run as efficiently at the lower temperature either, so if the thermostat isn't working right, replace it.

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โˆ™ 2005-11-25 20:24:21
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Q: Could your thermostat cause you not to have heat?
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Related questions

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The thermostat may be stuck open


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Yes, it can.


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if the thermostate is stuck open it wont allow the coolant to reach a certain temp. which could cause the heat to not work to well.


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