# Tranny noise? Identify it! **URL:** \ **Category:** SON240sx Automotive\ **Created:** [August 2, 2007, 12:01pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181 "2007-08-02T12:01:55Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Matt89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matt89/32/3202_2.png) [@Matt89](https://forums.speedlife.net/u/Matt89)\ **Post date:** [August 2, 2007, 12:01pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/1 "2007-08-02T12:01:55Z")
Ok, well I’ve installed a Centerforce stage 2 for fun.It was fine for 2 days, but now something is making a noise towards the front of my tranny. It only does it on deceleration, and revving down. At first, I though it was my exhaust hitting the chassis due to my new solid subframe bushings changing the location of the exhaust a bit, but upon further inspection, I realized that it’s coming from the rear of the motor / tranny. The best way I can describe the noise is kinda of like a rod knock. I can also feel the vibration through the clutch pedal when it’s making the noise. I’ll have a video up in a few minutes, any help is greatly appreciated. [![http://i63.photobucket.com/albums/h160/Mathieu1989/th_054c4ac6.jpg](http://i63.photobucket.com/albums/h160/Mathieu1989/th_054c4ac6.jpg)](http://s63.photobucket.com/albums/h160/Mathieu1989/?action=view¤t=054c4ac6.flv) ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [August 2, 2007, 12:50pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/2 "2007-08-02T12:50:09Z")
I’m leaning towards some type of chatter in the clutch ? like as if you didnt tighten the pressure plate down tight enough or one/some bolts have came lose and its vibrating back/forth off the flywheel ? Which you would feel in pedal for sure considering you load up the pp everytime you disengauge the clutch but I could be wrong… Anyone else ? ---
**Author:** ![Matt89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matt89/32/3202_2.png) [@Matt89](https://forums.speedlife.net/u/Matt89)\ **Post date:** [August 2, 2007, 1:16pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/3 "2007-08-02T13:16:22Z")
It also made this noise when I started the car, mostly went away when I pushed in the clutch. It also makes that “crrrrrrrrrrrrr” noise on upshifts. ---
**Author:** ![Matt89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matt89/32/3202_2.png) [@Matt89](https://forums.speedlife.net/u/Matt89)\ **Post date:** [August 3, 2007, 12:21pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/4 "2007-08-03T12:21:03Z")
It was loose flywheel bolts. I got lucky,it could have been an expensive mistake. It only cost me 4 hours and 35$ worth of tranny fluid. ---
**Author:** ![sil8t](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@sil8t](https://forums.speedlife.net/u/sil8t)\ **Post date:** [August 3, 2007, 12:41pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/5 "2007-08-03T12:41:55Z")
did you torque down the flywheel bolts right. id take it apart and check everything save your self a clutch and possible a crank ---
**Author:** ![Matt89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matt89/32/3202_2.png) [@Matt89](https://forums.speedlife.net/u/Matt89)\ **Post date:** [August 3, 2007, 12:49pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/6 "2007-08-03T12:49:08Z")
did you not see my reply? It’s already done 😛 Thanks though! ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [August 3, 2007, 12:49pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/7 "2007-08-03T12:49:09Z")
> [@Painting a car flat black?](https://forums.speedlife.net/t/painting-a-car-flat-black/13519/18): > > It was loose flywheel bolts. I got lucky,it could have been an expensive mistake. > > It only cost me 4 hours and 35$ worth of tranny fluid. I knew it was a loose bolt/bolts because its the ONLY thing that would cause the problem you described. LOCK TITE FTW BOYS!!! ---
**Author:** ![sil8t](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@sil8t](https://forums.speedlife.net/u/sil8t)\ **Post date:** [August 3, 2007, 12:54pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/8 "2007-08-03T12:54:38Z")
a lil late on that one sorry man ---
**Author:** ![Matt89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matt89/32/3202_2.png) [@Matt89](https://forums.speedlife.net/u/Matt89)\ **Post date:** [August 3, 2007, 4:10pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/9 "2007-08-03T16:10:11Z")
haha its all good. I just hope they dont vibrate loose again, this will be one of my fears from now on 😛 ---
**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\ **Post date:** [August 3, 2007, 11:21pm UTC](https://forums.speedlife.net/t/tranny-noise-identify-it/108181/10 "2007-08-03T23:21:57Z")
If they are “vibrating” lose, buy new ones. Well worth the $20.