Question about 2000 Mitsubishi Eclipse

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I only get warm heat in my car

Is it the themostat? , filled with antifreeze any suggestions?

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The heater core is like a small radiator inside your dash. The coolant flow through it can be restricted by corrosion. The lack of flow of coolant through the heater core will result in a lack of warm air inside the car. Flushing out the heater core may help. If not, you will have to replace it. Also check the heater control valve if your car is equipped with one.

Posted on Jan 11, 2009

  • blueextc3221
    blueextc3221 Jan 11, 2009

    The thermostat in your car controls the temperature of the fluid entering the heater core. Thermostats have different temperature setting i.e. 195,180 etc. When the rated temperature is approached, the thermostat starts to open up, the fluid path is changed and the temperature of the fluid is held at the rated temperature. If the thermostat opens too soon, or fails to close the heater core will not reach max temperature, and the air from the heater air will be warm,not hot. Also the mechanism that opens the duct door may not work,and the same problem will occur.

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The thermostat could be stuck part way open not allowing water to flow freely

Posted on Jan 11, 2009

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