i have noticed a metalic-like clicking noise coming from under my car when it idles at certain rpm's, ussually about 1,000-800, and when i accellerate it becomes a flutter (sounds like a leaf in my exhaust). my friend told me it my heat shiled. i lookd it up and it said that ussually rust out or bolt loosen aftr time. could these be romoved without harming the car?
maroon 1998 mustang V6 auto. AM cai. Raxiom black headlights