I would go to Gus Johnson in the valley... I went to the cda site twice... Had to take my car there multiple times because they apparently guess what is wrong until they fix the right thing. Full story on Google maps if interested.
What do you mean by get your radiator winterized? The radiator should have the correct fluid for summer and winter and shouldn't need any service other than periodic change.
Parker Ford in Coeur d'Alene Idaho has an excellent service department.
The Ford dealer can help. Just call their service dept.
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