Every so often, perhaps your car makes a noise that you can’t identify, but you hope goes away. Often times, this is wishful thinking. A recent article at Yahoo Autos called 16 Costly Car Noises gives the possible sources of these clunks, knocks, hisses, hums, rattles and squeals. Wishing them away or ignoring them altogether is never a good policy. There are certain noises that should not be avoided. Noises that could potentially cause greater damage if ignored or even compromise the safety of your vehicle.