Transmission Noise in Neutral @ Cold Start
 

Hello everyone!!

I'm Matteo from Italy.. this is my first post about my GT86! :D

I noticed a strange noise coming from the gearbox, as you can hear in the video.

Cold start (morning), car @ idle 600rpm, gear in neutral and cluch off.

If i press the cluch pedal (as you can hear in the video), the noise go away. After a few miles the noise go away compleatly.

I went today to the dealer, they say that they have to change de gearbox and differential oil... well it is very strange, the car have about 8500km (5300miles)...

[ame="https://www.youtube.com/watch?v=hThTWYqIQ5s"]GT86 Cluch noise - YouTube[/ame]



Any advice?

Thank you very much and sorry for my bad English. :D

Matteo

welcome and no video

Sorry, now i fix the video links :D

Thanks! :)

it seems to be a noisy throw out bearing or pilot bearing; should be an easy fix.

I have this exact noise as well. Goes away once you push the clutch in?

Had this noise to. Went away when I pressed in the clutch pedal. My dealer replaced the transmission. The noise didn't go away but the dealer doesn't "hear" it. Interesting that they did not replace the pilot bearing. The new transmission did come with a new throw out bearing.

It's hard to tell, but I don't hear anything unusual..
Sounds like a noisy clutch assembly and cold rotating gears..
Your sitting real close to the transmission in this car.. That and minimal
Insulating materials gives you a real live close up performance!
I had similar noises in my last few sports cars and they were all noticeable
And considered normal.

Diddo on the crazy rattling sound mid way during warm up - clutch in = happy brz

Mine started doing the same thing now that it's gotten cold... My throwout bearing is pretty squeaky too...

I heard something exactly like this for the first time today. If I were in neutral, without the clutch in, and rev slighty, you would hear transmission "chatter." Clutch in, no sound. It sounds like a bad rattle.

I have noticed this for about a month, but as the temps have stared to drop in Maine, I feel as though it is becoming more noticeable.

Hello Guys! I have news...

Last monday my dealer change differential and gearbox oil (i hope using the manual spec)...

The noise is now different, i can barely hear it, but still there!

Tomorrow i try to record it again...

Hello!

yes, when i push the cluch in the noise go away! :)

When the car go hot (a few miles) the noise go totally away

Hello!

Do you think that changing the oil of gearbox and differential (i don't know why the change even the differential oil), will reduce the noise permanently?

Thanks! :)

I wouldn't bother. Going to a higher viscosity oil might give you less noise..
But adversely affect shifting.. Especially when cold. The diff shouldn't be noisy.. Maybe during tight turns .. Or buy a BMW where their dual mass clutch and flywheel is uber engineered and they pad the interior inside real good and it adds hundreds of pounds and thousands of dollars.. This car is kinda raw.. It's all feedback and noises which adds to the experience..

sounds like a bad throw out bearing. I had this issue in my tacoma X-Runner (6MT) a few years back.

Reasons for a throw out bearing to go bad:

-keeping your foot on the clutch at stop lights or other times when it is not needed.

-the excessive heat from track use

This morning, car compleatly cold.. seems the noise is gone...but still there...

[ame="http://www.youtube.com/watch?v=ZA7vTEaaLaI"]Toyota GT86 - Sostituzione Olio Cambio e Differenziale - YouTube[/ame]

I dont hear anything in that video

my car has 1200 miles and im starting to hear the same rattle. is it considered "normal" ?

it's definitely not normal to hear that kind of chatter, especially if it's intermittent like that. I have this very issue as well although not quite as loud. I also have a bit of a clack when engaging/disengaging the clutch. it's been going on since about 1000 miles. I'm at 8000 on the clock now. Still driving it like I stole it.

Side note, toyota and subaru don't seem to let their techs do anything moderately invasive. They will most like just replace the transmission if it's anything not clutch related.

I've had the same noise since my car was new. There is another long thread somewhere in this forum called "flywheel rattle" where people complained about the same thing.

For me, it only happens on a cold start. It sounds like a "jar of marbles". Pushing the clutch in makes it go away. It goes away on its own after car is warmed up.

I've been putting it off but I suppose it's time to get this on video and take my car in.

Hello!

After 10 days after differential and gearbox oil change, i have to say that the noise is very low now.... but something is still there...

Hey guys. Sorry to bump a year old thread, but I figured that I would post here instead of starting a new one since Im experiencing what seems to be the same issue.

Apparently I get a chattering noise ONLY on cold starts, and when I press the clutch pedal in and let go once, it goes away compeletely and doesnt come back even when driving. Im assuming it is the input shaft bearing making the chatter? The thing is, this just started happening AFTER I changed the transmission fluid with Motul Gear 300 this past Saturday.

Has this happened to anyone else whos changed out their tranny fluid?

the clutch disc going to be bad . change it

So has it been determined that it is the clutch assembly or something I should take into the dealer to have the transmission checked out/changed?

The throw out bearing causes the issue on cold start. Mine has done this since new. Dealer shoved it off. I plan to change it out myself.

yeah just noticed how loud my tob was this morning at 8K

I have this problem any update on what to do??

Were you able to listen to the videos? Looks like OP retracted them.

I have no idea what the problem is.

No but from what the guys are saying I have the same symptom, mines a 2015 with 8000km and on cold starts while letting it warm half way you hear this clatter and when you slightly Rev it it gets abit louder . at first I thought it was my engine was knocking but once I push the clutch in the noise went away. after its fully warmed up its complete gone and drives fine. Note that I started hearing it after I changed my tranny and diff oil to motul 300

Are you sure you got enough oil in the gearbox? 100% certain?

Same here. In the owners manual it even says not using the OEM fluid may cause noises in the tranny/diff.

Ok, so it is just gearbox clatter. Meh, as long as the oil level is correct...

My gearbox made that racket at times (whilst I was adjusting the clutch pushrod - in & out) even with the stock fluid ! Tried MTF2 & currently using Gear 300 & same result until you get the adjustment near perfect. Temps matter also.

Hello to all!

I made a new video today:

[ame="https://www.youtube.com/watch?v=hThTWYqIQ5s"]GT86 Cluch noise - YouTube[/ame]

2000km ago i changed the Gearbox and Differential fluid with RedLine with the right quantity and oil type.

Noise always the same @ cold, after just 5km the noise go away.

I'm bumping this thread because I have the exact same issue (the video above perfectly demonstrates it.) Wondering if there were any further developments?

Humor me. While it's cold, with the clutch engaged, try slowly sliding each of the shift forks so you're touching each synchro. Is it possible one of the shift forks is slightly misaligned? Do you find a position where the noise disappears or changes?

As I stated earlier in this thread. It's just gearbox chatter but that last video is pretty annoying. I'd be searching for something if mine was that loud.

A lot of people suggest the throwout bearing, but my question is would that bearing make noise without depressing the clutch? I don't know enough about how things work down there to know the answer to that question. This car also only has 19k miles on the odometer, though its always possible for something to fail prematurely.

I had this problem too and what ive noticed so far is some 86 if you change the tranny oil you will get this noise. Not all but some , im thinking its the clutch flywheel. Im just gonna save up for a new ACT clutch kit and call it. It has nothing to do with the tranny since i got mines replace and mines 2015 BTW and still had that noise.

I had the same exact noise as stated in the OP with my BRZ. It had to be cold outside and before the car was to temp, 600 RPM, in neutral and clutch out. Rattling, chattering noise. Once the clutch was in or the car was up to temp, the noise stopped.

I took it to the dealer and they replaced the transmission. As far as I remember, it never made the noise again.

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