Mine only has 200 miles on it, so I have only touched 70 mph for a short time, but I did not notice anything unusual (AWD, 2.0l). If mine develops a vibration I may try adding a local stiffening patch (Dynamat or something similar.) Check that the hinge bolts are still tight.
At least on the F-150s, it has to do with air pressure causing the hood to flutter, nothing to do with the hinges. According to that service bulletin, you need to adjust the latch tighter or put rubber hose under the front of the hood to create an air seal so no air gets under the hood.
Interesting I have the lund bug shield installed yet 2 weeks ago o test rode my same build with no bug shield still a flutter in the hood...maybe the F150s issues is the same as this
I test drove a Bronco Sport with the 2.0 EB back in January and I noticed the hood flutter on that vehicle during my drive. I ended up not purchasing the car ( I liked the driving qualities but thought the rear interior space was small, plus the dealer was adding $3k market price uplift for the new model ). I found the hood flutter to be annoying but forgot all about it until I started reading the MTC reports about it occurring on some of the new Mav’s. I hope there is a fix if it happens on my Mav.
