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Old 08-13-2014, 02:11 AM   #16
housecat
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The rattling noise appears to be normal

Quote:
Originally Posted by ninedice View Post
Mine does this as well. I read somewhere else on the forum that it's the flywheel rattling when the RPMs drop too low. I asked on the scion site if it will damage the flywheel but no response yet.
I found the thread: http://www.ft86club.com/forums/showthread.php?t=12429

I'm ashamed I didn't find it before posting my own thread, but I did try searching the forums before posting.

Here is a video from that thread that shows the exact same noise that I am experiencing, and it also shows that the tachometer needle DOES drop to about 600rpm and jumps back to 700rpm when the rattle stops.
http://s421.photobucket.com/user/whs..._1331.mp4.html

After reading through all 5 pages of the thread, most people are blaming either the direct injection system, lightweight flywheel, throw-out bearing, gear box, or just harmonic oscillations for the chattering noise.

Furthermore, there is no solution to this noise yet and we probably don't need to be concerned about the noise. As long as we keep telling dealers that we are experiencing this noise, I think the word will get to Subaru/Toyota and they might give us an answer. For the meanwhile, the chattering noise seems to be completely normal, happens to most if not all BRZ/FRS's, and most likely will not damage our cars.

Thanks everybody for your responses.
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