Notices
Brakes & Suspension 350Z stoppers, coils, shocks/dampers

Need help with a suspension related issue

Thread Tools
 
Search this Thread
 
Old Apr 29, 2015 | 02:33 PM
  #1  
billyvq_uick's Avatar
billyvq_uick
Thread Starter
Registered User
 
Joined: Jan 2013
Posts: 60
Likes: 0
From: CT
Default Need help with a suspension related issue

Just recently (about two days ago) I noticed while driving *sometimes* there is a thumping FEELING..coming from my driver side, I assume it's the rear.

The strange thing is that it is not a thump as in a thumping sound, it is a sensation of thumping. For what it's worth it seems to match the tempo of the speed my tires are rotating, almost as if there's something stuck to the tire and it's thumping as the tire spins, but I don't see anything wrong with the tire (from what I can see now)

My rotors, and brake pads need to be done, (Non-Brembo) but I'm not sure that's the problem as it occurs without braking.

Another strange thing is that it doesn't seem to happen all the time. I really only notice it when I'm going in a straight line, at low speeds.

Thank you for any help or ideas in advance.
Reply
Old Apr 29, 2015 | 03:57 PM
  #2  
Spike100's Avatar
Spike100
New Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2006
Posts: 7,337
Likes: 204
From: Edina, Minnesota
Default

^^ It could be your tires.
Reply
Old Apr 29, 2015 | 04:55 PM
  #3  
billyvq_uick's Avatar
billyvq_uick
Thread Starter
Registered User
 
Joined: Jan 2013
Posts: 60
Likes: 0
From: CT
Default

Interesting. Do you think maybe a tire weight could have fallen off?
Reply
Old Apr 29, 2015 | 05:43 PM
  #4  
Spike100's Avatar
Spike100
New Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2006
Posts: 7,337
Likes: 204
From: Edina, Minnesota
Default

^^ When I have seen what you describe, it’s been a fault in the tire itself. Typically it’s a separation of the tire components that makes a noise and often affects driving and handling. Have your tire dealer check the tires. --Spike
Reply
Old Apr 30, 2015 | 09:13 AM
  #5  
billyvq_uick's Avatar
billyvq_uick
Thread Starter
Registered User
 
Joined: Jan 2013
Posts: 60
Likes: 0
From: CT
Default

*UPDATE*

Drove to the gym and back today, around 3 miles all together. No thumping feeling.
Reply
Old Apr 30, 2015 | 09:21 AM
  #6  
travlee's Avatar
travlee
Master
Premier Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Jul 2011
Posts: 49,725
Likes: 9,296
From: Texas
Default

wonder if the steel belt in the tires is messed up... back in the day i would feel vibration when the wheel would get hot, but wouldnt do it when i first drove it

Last edited by travlee; Apr 30, 2015 at 11:44 AM.
Reply
Old Apr 30, 2015 | 11:19 AM
  #7  
billyvq_uick's Avatar
billyvq_uick
Thread Starter
Registered User
 
Joined: Jan 2013
Posts: 60
Likes: 0
From: CT
Default

^^ that could be it, as it seems to happen after I've been driving for a while.
Reply
Old Apr 30, 2015 | 11:48 AM
  #8  
matik's Avatar
matik
New Member
 
Joined: Jan 2015
Posts: 18
Likes: 1
From: Gurnee, IL
Default

Get a shop to check your rear caliper. Looked the same issue up for a friend and his was that his caliper wasn't completely being detached from the rotor and occasionally, it would be hitting causing the thumping or vibrating. It's a feeling/sound that comes and goes right? I took his car for a day and it would randomly come and go where the steering would shake pretty violently.
Reply
Old Apr 30, 2015 | 01:16 PM
  #9  
dkmura's Avatar
dkmura
General & DIY Moderator
MY350Z.COM
Premier Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (64)
 
Joined: May 2002
Posts: 8,624
Likes: 1,393
From: Aurora, Colorado
Default

There's a likely cast of three suspects: the tire, brake assembly or possibly a rear wheel bearing going out. There are plenty of threads on here about all three, so a search should turn up additional info for you to consider.
Reply
Old Jul 30, 2015 | 01:43 PM
  #10  
billyvq_uick's Avatar
billyvq_uick
Thread Starter
Registered User
 
Joined: Jan 2013
Posts: 60
Likes: 0
From: CT
Default

Old thread, but I figure I'd post some updates as well as the issue I'm still having.

1. Rear brakes were toast. Replaced driver side rear caliper, it was seized. replaced driver side rear rotor, it was fried because of the seized caliper, replaced both side brake pads.

2. I'm *STILL* getting a "tapping" sensation that matches the speed of the wheel rotating, mostly noticeable when I'm coming to a stop, and a SLIGHT sensation on the highway...it's not a shaking as in, you can see your hand shaking on the wheel..or a...."holy **** my tire might fall off" shaking. It doesn't matter if my foot is pressing the brake pedal or not, still get that tapping sensation. Mind you, there are no loud noises while this is going on.

Seeing how I replaced pretty much every brake component in the rear, I'm going to jack up the rear this weekend and check out the entire rear end to see if something may be wrong there. Other than that, I can only see it being a tire problem?..?..?

I'd hate to spend money on two new rear tires if I don't need to, especially seeing how the treads are still good on them. What else could it be?
Reply
Old Jul 31, 2015 | 06:52 AM
  #11  
dkmura's Avatar
dkmura
General & DIY Moderator
MY350Z.COM
Premier Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (64)
 
Joined: May 2002
Posts: 8,624
Likes: 1,393
From: Aurora, Colorado
Default

Already answered this in your new problem thread, but it could be an ABS issue.
Reply
Old Jul 31, 2015 | 08:48 AM
  #12  
MicVelo's Avatar
MicVelo
350Z/370Z Tech Moderator
MY350Z.COM
Premier Member
10 Year Member
Liked
 
Joined: Oct 2014
Posts: 10,315
Likes: 3,378
From: Northern California
Default

Originally Posted by dkmura
Already answered this in your new problem thread, but it could be an ABS issue.
^^ I, as well.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lt_Ballzacki
Brakes & Suspension
39
Aug 6, 2021 06:19 AM
Colombo
Forced Induction
35
Nov 9, 2020 10:27 AM
hajwoj
Autocross/Road
27
Nov 1, 2015 05:25 PM
350z82
Exterior & Interior
19
Oct 1, 2015 06:25 PM
Depravity
Brakes & Suspension
14
Oct 1, 2015 04:49 PM




All times are GMT -8. The time now is 11:47 PM.