hey guyz when i first start my car, the 1st gear i put it into which is either 1st or reverse, once i engage the clutch it makes this like humming sound for a second or 2 and then doesnt do it again until i start the car and do it over. almost sounds like what a machine part moving would sound like....im not noticing anything funky but it worries me, if anyone has had this prob or knows wats up lemme know thanks a mil