I recently purchased a 2016 F150 Sport 3.5L Ecoboost and noticed something on the 1st drive home....a loud sound of air rushing from the engine compartment when accelerating. The moment I let off the accelerator it goes away. This will happen when I'm going about 55 mph and seems to happen if the engine is cold or warmed up. This also does NOT happen all the time. I have a video I would like to post....if I can figure out how to share that. I was reading a post on here the other day where someone had a similar issue and it was said it might be the BOV diaphragm...? What do you guys think?