I've noticed when I'm driving 70+MPH, the hood shakes a bit, I took a quick look at it and nothings out of place or missing. When the hood is up, I push up a bit on the driver side corner of the hood and it seems loose, but the nuts are tight. Any ideas?

 

They have aluminum hoods on them, mine will shake abit to and worse when you meet a big rig on a 2 lane road. I believe its just the way the aluminum is in my opinion