StockD15b

all right guys this is driving me crazy.. around 2k rpm no matter if clutch is engaged or not, moving or sitting still theres a chattering noise.. its boggling my mind, cant seem to locate it. sounds like its coming from the trans. but the car still drives as it did pre the noise. no power loss, crazy idle or anything! any one had the same issue or idea, or sugestion?

good this is im saving gas bc i shift right at 2k so i dont have to hear it. lol

jmmorgan82

stock clutch? does your pedal ever seem to stick at all? Mine is doing the same thing, but my throwout bearing is sheared in half so thats what is causing it.

Blade660

Are you sure its coming from the trans? .... The noise you described happened to a friend of mine and it was the waterpump bearings. His car was not a mustang, but I guess it could be the same thing. You might want to give it a try. GOOD LUCK!

sprostang

It could also be a loose heat shield on one of the cats.

Blade660

Good point sprostang ... Could be .... Did'nt even think of that.

Dan04COBRA

Could be that you are lugging the engine and getting that nasty chatter.

What gear? What speeds?

amoosenamedhank

My car does the same thing. Doesn't matter what RPM, or if the clutch is engauged or not, doesn't matter if you moving or not. It really sounds like its coming for the transmission area. I have a king cobra clutch[:@] and an o/r x pipe so it could be a throw out bearing but it wouldn't be a heat shield. I can take the shift boot off and it really sounds like it's coming from the transmission area. I don't think its internal on the transmission though because if it was it would stop when the clutch is pushed in. It also doesn't do it all the time just sometimes so I'm completely lost.

04DSGB

Sound like a throwout bearing or possibly a input shaft bearing in the transmission. POS Tremec 3650

96gtwithpsi

oh god , there is an ASE question exactly like that on the A3 manual trans test.

04DSGB

My car just got out of the shop for the same problems mentioned. I needed a bearing overhaul in my POS Tremec 3650.