Why Heater and air flow only thru defrosts vent and not the others when selected ?
My car has 100000 miles.
My car has an automatic transmission.
Hello there. In most cases this is a problem with the heater control valve or with the vent switch located behind the dashboard. The best way to determine which is faulty and causing this issue on your Ford Taurus is to have a professional mechanic complete a heater is not working correct inspection.
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