My 04 s2000 has this rattle noise that I only hear when the car accelerates/rev. If i accelerate in gear I can here it, If i push in the clutch and or put it in neutral and rev it I can hear it. But I only seem to here it once the engine is warmed up. I am trying to upload a video of the sound now. Anyone have any ideas? I was thinking maybe the tct but Im not sure of the signs since this only occurs when it is accelerating/revving the car not at idle.

***Edit here is the video, sorry if it is loud, my camera was close to the engine because I didnt know if it would pick up the sound

http://tinypic.com/player.php?v=a4yfwl&s=7

 

That is 100%, without doubt, a bad TCT.

PMed.