I've been hearing a rattle (sounds like a loose peice of sheet metal) off and on since I bought my 95 ex coupe in Dec. I use to hear it when the motor was still cold, but now I'm hearing it every time I pass 3200-3300 rpm. Needless to say at 80 on the interstate it's a steady rattle. I don't have anybody to rev it for me to narrow down where it's comeing from, under the hood is all I know. Any help or sugestions would be greatly appreciated.