Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Engine, Exhaust, Transmission (https://www.ft86club.com/forums/forumdisplay.php?f=8)
-   -   Thump sound after shifting.. Any ideas? (https://www.ft86club.com/forums/showthread.php?t=11275)

imravenit 07-10-2012 10:10 PM

Thump sound after shifting.. Any ideas?
 
To begin with i have a manual trans frs with only 200miles but the problem was there since 0 miles.. i just did not pay much attention until now its kind of bugging and worrying me.. the problem is that its only noticeable on dead stop and when shifting to first gear.. I can hear and feel the THUMP or Pounding sound/feel at the rear of the car after letting go of the clutch pedal very slightly.. Has anybody here experience/hear/feel this sound? Is it normal? Is it because of hard bushings? or loose bushings? Whatever it is i just want to make sure this is normal... Thank you in advance!

Draco-REX 07-10-2012 10:18 PM

It's normal, just the internals coming to a stop. Lots of threads on this. There's even a TSB from Toyota/Subaru stating it is normal.

If it bothers you, just wait a second or so before putting it into gear and it won't thump.

imravenit 07-10-2012 10:21 PM

well the car is already at stop? So the internals should have zero rotational to begin with.. but i guess if everybody is in the same boat.. looks like we got crickets and thumping associated with this car.. Thanks

Chewie4299 07-10-2012 11:48 PM

Quote:

Originally Posted by imravenit (Post 307581)
well the car is already at stop? So the internals should have zero rotational to begin with.. but i guess if everybody is in the same boat.. looks like we got crickets and thumping associated with this car.. Thanks

This isn't true. Your transmission spins when not in gear.

Sent from my Galaxy Nexus using Tapatalk 2

Brimford 07-11-2012 12:00 AM

Yeah this is definitely not an issue, actually its shows a good tranny and parts. I like the bump. But if you don't like it, just hold the clutch in for a few seconds before putting it into gear.

Chewie4299 07-11-2012 12:09 AM

I like the bump too. Me jeep used to do it. I find it reassuring in some way.

Sent from my Galaxy Nexus using Tapatalk 2

imravenit 07-11-2012 12:15 AM

Sorry or the wrong information.. its totally fine for me i just wanna make sure its normal..

Sony 07-11-2012 12:29 AM

The thump you hear is the clutch friction disc coming to a sudden stop when you shift into first gear. If you shift into neutral when coming to a stop but before fully stopping, the friction disc will continue to spin for a few seconds before coming to a complete stop. If you shift into first while the friction disc is still spinning you get the thump of the disc coming to a stop whereas if you wait until you come to a complete stop before shifting into neutral you will not get the thump. You will also get the thump if you're sitting in neutral at a stoplight with your foot off the clutch, then when the light turns green you quickly put your foot on the clutch and shift to first, you will get a thump for the same reasons as I said before.

*KID* 07-11-2012 02:47 PM

Yea I noticed these cars are noisy everywhere, but its normal. motor is noisy, the fans as well, the clunking sound... but I love it for some weird reason, it gives it that track feel. as long as you dont hear something out of the ordinary your good

Sigh-on-Rice 07-11-2012 02:58 PM

I have a feeling:
I think the OP is talking about the noise after the gear is shifted into 1st gear and let the clutch go a little bit.
And everyone else is talking about the noise at the moment when the gear is shifted into the 1st gear.

Koji_Online 07-11-2012 03:04 PM

Quote:

Originally Posted by Sigh-on-Rice (Post 309067)
I have a feeling:
I think the OP is talking about the noise after the gear is shifted into 1st gear and let the clutch go a little bit.
And everyone else is talking about the noise at the moment when the gear is shifted into the 1st gear.

I agree based on OP statement;
Well, if you get a clunking after putting into gear & when you release the clutch a little, it could possibly be you are releasing the clutch too quickly & with not enough throttle; placing drive-train shock.
Is this your first manual car OP?

imravenit 07-11-2012 04:31 PM

Quote:

Originally Posted by Koji_Online (Post 309079)
I agree based on OP statement;
Well, if you get a clunking after putting into gear & when you release the clutch a little, it could possibly be you are releasing the clutch too quickly & with not enough throttle; placing drive-train shock.
Is this your first manual car OP?


No not my first m/t car.. yes i was wondering why it makes that sound on a dead stop and after pressing on clutch and putting it to 1st gear it makes the sound.. it thumps before i even release the clutch slightly.. but im very gentle wit the clutch when releasing so idk whats the problem here.. But does everyone here experiencing this?

Chewie4299 07-11-2012 04:41 PM

Quote:

Originally Posted by Sony (Post 307855)
The thump you hear is the clutch friction disc coming to a sudden stop when you shift into first gear. If you shift into neutral when coming to a stop but before fully stopping, the friction disc will continue to spin for a few seconds before coming to a complete stop. If you shift into first while the friction disc is still spinning you get the thump of the disc coming to a stop whereas if you wait until you come to a complete stop before shifting into neutral you will not get the thump. You will also get the thump if you're sitting in neutral at a stoplight with your foot off the clutch, then when the light turns green you quickly put your foot on the clutch and shift to first, you will get a thump for the same reasons as I said before.

This is your explanation, OP. No issue. Everyone should experience this in these conditions. Some may not notice it.

Sent from my Galaxy Nexus using Tapatalk 2

Sigh-on-Rice 07-11-2012 04:45 PM

Quote:

Originally Posted by imravenit (Post 307554)
after letting go of the clutch pedal very slightly

Quote:

Originally Posted by imravenit (Post 309241)
before i even release the clutch slightly

I'm having a hard time trying to know when exactly it makes the noise. You said "after" letting go of the clutch on your first post, but now you're saying "before" releasing the clutch slightly.


All times are GMT -4. The time now is 01:41 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.


Garage vBulletin Plugins by Drive Thru Online, Inc.