thats the same one i have.. sounds engine related bit it just could be that plastic cover on the engine. imma take that off and see if it goes away. u should too :thumbsup:that might be it but it kind of sounds like a loose metal grinding sound. i really don't know how to explain it.
acuras claiming thats the problem of the noise? i'm not a master tech, but thats not an easy thing to diagnose as the cause of a noise around 3k rpm. maybe someone else can chime in, but i just have a hard time believing thats whats causing your son's rattling problem.My son has an Acura RSX typw "S" and to make a long story short.........he also heard some strange noises at around 3000 RPM and it turned out to be the wrist pins on the pistons. Acura "Would NOT" cover it under warranty. They said it appeared to them that the engine had been ran without oil, which is really strange since they did most of the oil changes. He had no warning at all, no lights, no nothing. Now we are looking at a complete engine swap out.