I don't think this is related to the recall, and Mazda's website does not say my car is affected by the recall, but when I rev the engine to about 3k RPM and hold it there, it has a slight clicking noise. I can only hear it when I have my windows down and I'm next to a wall (something for the sound to bounce off of) Has anyone else encountered this, and is there anything I can do about it? Or is it just normal operation? Any help is appreciated