Question about 2004 Ford Freestar

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No heat,front or rear, only one hot line to each heater core.

Both lines connecting to thermostat housing are hot, other 2 lines are cold. is there a valve allowing water to flow through cores? i changed thermostat and flushed.

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Hey Dan, I know you said that you flush the system, but if the heater cores are restricted it could be hard to flush under normal flushing, recommend pulling the hoses at the core itself and back flushing it both directions several times. See if that will help.

Posted on Jan 23, 2013

  • gregconti
    gregconti Jan 23, 2013

    Hey Dan, I know you said that you flush the system, but if the heater cores are restricted it could be hard to flush under normal flushing, recommend pulling the hoses at the core itself and back flushing it both directions several times. See if that will help.

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  • Contributor
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You may have got a defective thermostat if its sticking 2 lines would be hot and the other two cold

Posted on Jan 23, 2013

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SOURCE: 2000 ford expedition 5.4 heat is cold. When heat

if the heater hoses are hot the only thing it could be is a blend door, if you can hear the door moving its not closing all the way, those are made of plastic and are common to brake at the actuator you will hear the actuator work but it will only partially close and open the door

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SOURCE: I have a 2001 Ford Taurus with heater issues.

No, there is no valve in your car. The likely problem is a clogged core. Would you like instructions for replacing it?

Posted on Dec 28, 2010

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