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2000 Ford Taurus Question: Caan a defective water pump cause heater malfunction

 

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rhtelt, Simsbury, CT, January 10, 2014, 19:25
 Rookie

The heater blows only cold air. Can this be caused by an inefficient water pump and/or thermostat frozen in the open position?

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  • Answer #1

    January 10, 2014, 20:19
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     Master

    Either one can cause that but so can several other things. I always start with a new T-stat and go from there.

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