They don't want us knowing too much.I tried but no luck
The verbiage is very specific; they don't say what they won't do, just that if it's not listed in the WSM, it won't be warrantable. Still, finding a Ford Service Dept. that would do it is unlikely.
Also, the implication is that if you do it yourself, or even have a qualified shop do it, you're SOL on the warrantee in the event of a failure.
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