Jeff I've been asking several mechanics and all have said that most engine parts in Ford cars (especially economy class) are designed and manufactured outside of USA/Canada.
Although Mexico is considered NA, the manufacturers go there for the same reasons they go to China, to avoid paying decent wages. cheap labor means inferior product in many cases because what slave gives two hoots about end product? I don't support these types of moves on principle alone, and yes I've heard all the arguments that some wage is better than no wage, blah blah blah. Plus the savings are not being passed back to North American consumers.
2 mechanics said many Mazda parts fit Fords. Really odd is that some Mazda truck parts fit in the Ford Mustang for instance.Pah