2004 Vue. There is no Rhyme or Reason to when this vehicle does this!\nI'll be driving along and it does a huge vibration it's kind of a metallic noise. Shakes this car and makes me feel like the motor is going to drop out of it because it is so major when it happens. It is sporadic and doesn't seem to happen at any particular speed. Taken it to the shop 3 times and it will not do it when they are driving it or I am driving it for them. Therefore they have been unable to figure it out.\nPlease does anyone have any ideas what should be checked or has had a similar problem?