My son's shake n go Disney Pixar Cars Mr. The King does not have sound anymore. When you shake it, it is silent. Put it down and it goes just fine. There is just no sound now. We have 2 of them and they both did that. Occasionally while shaking one of them, you can briefly hear the speaker putting out the sound.. only for less than a second though.. then it goes back to not working again. The other one is completely silent. I have opened it but have no idea what I am looking at in there