I drive a 2007 cobalt SS 4 door sedan. The other day I was driving I reached 40mph and I started noticing a buzzing/whining sound coming from the right side of the hood. It gets louder when i accelerate and winds down when i let off gas. there is no noise until i reach about 40. there also seems to be a vibration in my car from it, but im not sure if its from it. Does anyone know what it could be or any information on this. Thanks for reading.