ClubLexus - Lexus Forum Discussion

GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

Loud thudding noise- Help

Thread Tools
 
Search this Thread
 
Old 02-20-20 | 10:25 PM
  #1  
Spatel25's Avatar
Spatel25
Thread Starter
Driver School Candidate
 
Joined: Sep 2019
Posts: 13
Likes: 3
From: Ga
Default Loud thudding noise- Help
Hello,


I am getting a loud thudding noise when slowing marking a full turn to reverse/ going forward full turn in very low speeds such as 1-2 mph. It sounds like something is not right. It’s a 2015 GS 350 F sport, stock wheels and suspension.

Any ideas what it could be?


Thank you!
Reply Like
Old 02-21-20 | 02:32 AM
  #2  
chinee's Avatar
chinee
Racer
 
Joined: Jun 2018
Posts: 1,934
Likes: 947
From: FL
Default
Normal... there a fancy-schmancy technical name for that, it has to do with tire slippage against the ground that results in that "thud" sound.
Reply Like
Old 02-21-20 | 06:13 AM
  #3  
marjenmill's Avatar
marjenmill
Intermediate
 
Joined: Mar 2011
Posts: 295
Likes: 168
From: GA
Default
Originally Posted by Spatel25
Hello,


I am getting a loud thudding noise when slowing marking a full turn to reverse/ going forward full turn in very low speeds such as 1-2 mph. It sounds like something is not right. It’s a 2015 GS 350 F sport, stock wheels and suspension.

Any ideas what it could be?


Thank you!
AWD or RWD? Could be a CV joint going bad, at least I remember that type of issue on older cars, but not sure about the GS.
Reply Like
Old 02-21-20 | 10:28 AM
  #4  
signdetres's Avatar
signdetres
Racer
 
Joined: Nov 2017
Posts: 1,900
Likes: 888
From: Midwest
Default
Originally Posted by chinee
Normal... there a fancy-schmancy technical name for that, it has to do with tire slippage against the ground that results in that "thud" sound.
Ackermann steering geometry.
Reply Like
Old 02-21-20 | 04:10 PM
  #5  
chinee's Avatar
chinee
Racer
 
Joined: Jun 2018
Posts: 1,934
Likes: 947
From: FL
Default
Originally Posted by signdetres
Ackermann steering geometry.
That's it... the fancy-schmancy name.. Ackerman!
Reply Like
Old 02-21-20 | 05:00 PM
  #6  
bclexus's Avatar
bclexus
Lexus Test Driver
 
Joined: Nov 2014
Posts: 9,647
Likes: 2,333
From: Texas
Default
Originally Posted by chinee
That's it... the fancy-schmancy name.. Ackerman!
Ackermann Steering Geometry - Scrub Radius and Squirm
Reply Like
Old 02-24-20 | 01:23 PM
  #7  
jonathancl's Avatar
jonathancl
Racer
 
Joined: May 2004
Posts: 1,716
Likes: 368
From: Philadelphia
Default
This happens backing out of my driveway: turning to lock and backing slowly causes the outer front tire to skip or slip.
Reply Like
The following users liked this post:
Spatel25 (02-24-20)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
15 fsport GS 350 rattling noise from back rear & weird groaning noise when I turn
thtgrlMoe
Suspension
6
06-01-20 01:51 PM
Wired Buzzing Noise From Right-Front Side of the Car
chengfast
ES - 6th Gen (2013-2018)
5
01-27-20 06:05 AM
Griding noise when turning
maorsela
RX - 1st Gen (1999-2003)
14
07-18-19 03:58 AM
Chirping noise !!!! help
alec91
IS - 3rd Gen (2014-present)
2
01-17-17 08:37 AM
Back to Subforum
GS - 4th Gen (2013-2020)
View Next Unread
Maxton Design spoiler and skirts thoughts?




Advanced Search
Quick Reply: Loud thudding noise- Help


Reply Closed Thread Share
Forum Jump

All times are GMT -7. The time now is 10:56 AM.