Q: Heater blows only cool air even after water temp is up on 2001 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
had stat and core replaced, inside controls work. only one hose under hood is warm
(1) Answer
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If you don't have a water shut off valve, then you need to blow heater core out. Did you drain the heater hoses of debris before hooking to the new heater core.
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