Stacey Batchelder ONeil

I have noticed a clicking sound whenever I drive from a stop position. It has become more frequent, it is not a nail or screw in my tire, as it is not a constant clicking. I have had many nails and screws in my tires, I do know what they sound like. It only happens when I come to a complete stop and then propel forward, it is a singe click, kinda tin like. I am bringing it in to the dealer next week, I would like a little info before I go.