Question about 2000 Ford Focus

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After the heater has been running for roughly 15 min in the at 21 deg it starts blowing cold air.is this a sensor problem or is the climate control at fault?

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Several things to check! 1 coolant level in radiator, 2 water thermostat 3 water valve to the heater core,heater core plugged,water valve not getting vacumn from heater a/c controls. temperature blend door not closing all the way.

Posted on Sep 12, 2010

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