It can be very alarming to hear unusual sounds coming from your vehicle. If you are hearing any humming, whining, or even clunking noises emitting from under your vehicle, it is most likely a transmission issue. Luckily, these noises can help you pinpoint what issue you may be having with your transmission. Some of these issues are minor and can be easily taken care of, but some of them are much more major and may require special attention and service. Read on to see just what your transmission problem may be.