I've got a 2011 F-350, when i'm on the driving over 60 mph i hear this humming or buzzing noise coming from around the dash. It kind of comes and goes depending on the wind direction or if I'm passing a semi. Thinking it may be coming from around the windshield seal. Any help would be greatly appreciated.
You have the dreaded "wind getting under the windshield trim" noise. Do a search here to see what we did to solve it. A good auto glass shop can fix it with silicone. Search my name. Simple fix. If not let us know.