I just bought this car as a get around city car. Right away I began to notice an annoying rattling tinny noise. I thought that it may be a loose vibrating heat shield, but no luck there. Guessing maybe a catylitic converter, but it kind of sounds like it may be coming from the engine. Could there be something inside the engine damaged that would cause such a rattly noise. The vehicle runs incredible. It idles perfect with no vibration, and performs as well as a 12 valve sohc can be. I just can't pinpoint that noise. Any ideas that might help me out would be great. Thanks