Nissan 370Z Forum  

Horrible rattling/vibration noise in 3rd gear in higher RPMS

Hi guys, This is my first thread/post on this forum and unfortunately it's regarding an issue that just popped up on my manual 370z. During a spirited drive today (nothing

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree1Likes
  • 1 Post By Spooler

Reply
 
LinkBack Thread Tools Display Modes
Old 04-18-2020, 01:10 PM   #1 (permalink)
Base Member
 
Join Date: Jul 2019
Location: Europe
Posts: 18
Drives: 2011 370z M6 Sport
Rep Power: 5
tibor370 is on a distinguished road
Unhappy Horrible rattling/vibration noise in 3rd gear in higher RPMS

Hi guys,

This is my first thread/post on this forum and unfortunately it's regarding an issue that just popped up on my manual 370z.

During a spirited drive today (nothing too crazy though), my car started making a nasty buzzing/rattling noise that seems to be coming from the transmission. The noise is accompanied by a strong vibration in the shifter knob (stronger than usual).

The strange thing is that the noise and vibration only appears in 3rd gear between 4500 - 6000 RPM. It's not there at all below 4500 RPM and it goes away completely above 6000 RPM.

I think it might be also affecting gear 4 and 5 (in the same rpm range), but to a much lesser degree (I can barely hear it and feel it). I didn't notice it in gear 1 or 2.

The car drives completely normal besides the noise.

Here is what it sounds like. It's especially bad when I rev up to 6000 RPM and then let the RPMs drop (last 10 seconds of the audio clip).

Any ideas?
tibor370 is offline   Reply With Quote
Old 04-21-2020, 10:20 AM   #2 (permalink)
Base Member
 
Join Date: Jul 2019
Location: Europe
Posts: 18
Drives: 2011 370z M6 Sport
Rep Power: 5
tibor370 is on a distinguished road
Default

Not a single reply?

I just got back from the shop and was told that the transmission mount is the most likely culprit, resulting in the strong vibration in the shifter and the noise which accompanies it.

So I was told that the transmission mount should be replaced.

My car has only done 22,000 miles but it's almost 10 years old. So maybe the rubber mount deteriorated over time?

Any thoughts or experiences?
tibor370 is offline   Reply With Quote
Old 04-21-2020, 10:49 AM   #3 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

It sounds like the shifter knob vibration. Do a search on here. There is a fix for that.
ZontheRocks likes this.
Spooler is offline   Reply With Quote
Old 06-24-2020, 06:32 PM   #4 (permalink)
Base Member
 
NVSTR's Avatar
 
Join Date: Jul 2016
Location: Houston
Posts: 49
Drives: 2014 370z Nismo
Rep Power: 8
NVSTR is on a distinguished road
Default

I have the same issue! Havent been able to trace it down.
NVSTR is offline   Reply With Quote
Old 07-01-2020, 02:27 AM   #5 (permalink)
Base Member
 
Join Date: Oct 2015
Location: California
Posts: 162
Drives: 2010 40th 370z
Rep Power: 44
s2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond reputes2krazyyy has a reputation beyond repute
Default

I had this issue where vibration was present at high rpms. Try pulling off your shift knob/boot and pull up the rubber part under it. I pulled mine up and ziptied it so it wont sag down, it got rid of my vibration.
s2krazyyy is offline   Reply With Quote
Old 07-02-2020, 09:12 AM   #6 (permalink)
Enthusiast Member
 
Join Date: Apr 2017
Location: Maryland
Posts: 487
Drives: 15 Nismo Tech 6MT
Rep Power: 23630
babyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond reputebabyzilla has a reputation beyond repute
Default

So...I had a similar issue and was never able to pin point the problem. It occurred at high RPMs in all gears for me. Although it didn't sound good at all, the car seemed completely fine, so I never bothered with it (just thought it was another quirky issue with the Z). Then I had the dreaded CSC failure and replaced the clutch and master/slave cylinder. The noise has completely gone away and drives better than the day I bought it.

I think we can agree it is a transmission issue. I have a feeling if you make the same changes I did, your issue will go away. I'm just not sure if it's the CSC or clutch.
babyzilla is offline   Reply With Quote
Old 07-02-2020, 11:19 AM   #7 (permalink)
Premium Member
 
SouthArk370Z's Avatar
 
Join Date: Nov 2010
Location: South Arkansas
Posts: 8,435
Drives: 2014 Challenger
Rep Power: 324197
SouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond repute
Default

Quote:
Originally Posted by tibor370 View Post
... was told that the transmission mount is the most likely culprit ... should be replaced. ... only done 22,000 miles but it's almost 10 years old. So maybe the rubber mount deteriorated over time?
Very possible, especially if the car gets driven hard (sounds like you don't baby it). They tend to get hard over time and can shrink a bit - the looser fit plus the harder "rubber" can lead to Noise, Vibration, and Harshness (NVH). Could also be caused by one of the other drivetrain mounts (eg, the differential bushing which has a tendency to rupture).

Quote:
Originally Posted by Spooler View Post
It sounds like the shifter knob vibration. Do a search on here. There is a fix for that.
I'm too lazy to look that up but Spooler seems to know his stuff, so I'd look into it if it were my car.

Quote:
Originally Posted by s2krazyyy View Post
I had this issue where vibration was present at high rpms. Try pulling off your shift knob/boot and pull up the rubber part under it. I pulled mine up and ziptied it so it wont sag down, it got rid of my vibration.
Worth looking into.

Quote:
Originally Posted by babyzilla View Post
So...I had a similar issue ... had the dreaded CSC failure and replaced the clutch and master/slave cylinder. The noise has completely gone away and drives better than the day I bought it. ...
Another possibility to look at. 370Zs are infamous for CSC failures and other clutch issues.


I'd first look into what Spooler and s2krazyyy suggested; mounts, bushings, and clutch parts are pretty expensive and not that easy to fix even if you have a well-equipped shop.

Edit: First thing I'd do is change the transmission fluid. There are several threads about which brands, weights, etc to use. Might as well change the diff fluid while you're at it. Probably won't cure the vibration problem (still a very small chance it will), but needs to be done if you still have factory fluids.
__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

Last edited by SouthArk370Z; 07-02-2020 at 11:23 AM.
SouthArk370Z is offline   Reply With Quote
Old 12-27-2020, 03:28 PM   #8 (permalink)
Base Member
 
Join Date: May 2019
Location: Paris
Posts: 77
Drives: Nissan 370z
Rep Power: 5
brainrain is on a distinguished road
Default

Hello @tibor370z

I think I have the same issue, I listen your audio file, I have same rattle noise especially at high rpm on 3rd gear and then let the RPMs drop.

Did you find any solution for this ?
brainrain is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Slight vibration at higher speeds Troglodyte54 Wheels & Tires 7 02-15-2019 04:38 AM
rattling noise during 1st gear ShockWave Engine & Drivetrain 43 10-02-2016 05:30 PM
rattling at high rpms seanjkline Audio & Video 2 05-07-2013 09:54 AM
HORRIBLE NOISE! Screeeeeching... Hugoneus Nissan 370Z General Discussions 16 09-17-2010 04:40 PM
Higher gear ratios Zeto Engine & Drivetrain 8 07-09-2010 08:37 AM


All times are GMT -5. The time now is 04:47 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2