Suspension & Brakes Springs | Shocks | Handling | Rotors

Clunk on acelleration

Thread Tools
 
Search this Thread
 
Old Oct 10, 2018 | 02:43 PM
  #1  
98Bird's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2006
Posts: 110
Likes: 0
Default Clunk on acelleration

Something is making a clunk in the rear when I accelerate at medium throttle. Much worse at hard to WOT. No clunk at all if I drive normally, like if it were a commuter car....kind of feathering the gas though.

Also, sometimes when it rains hard and I come to a stop at a light, sometimes there's a HUGE vibration + humming, like something's about to explode. Taking it off of drive (automatic) and putting into neutral, stops this noise. And then it comes back on when put into Drive, but goes away when the car is moving. This only happens once in a while when it rains.

If t's something with the suspension, then how worried should I be? Should I get it looked at immediately or do I have some time to keep driving to work, etc. until I get the time?

I don't feel anything worse or even different with the handling. It's about the same. No clunking when making sharp turns at a sporty speed neither. Thanks for any help.
Reply
Old Oct 10, 2018 | 09:45 PM
  #2  
JD_AMG's Avatar
TECH Senior Member
 
Joined: Jan 2004
Posts: 5,798
Likes: 16
From: St.Charles MO
Default

Is the car bone stock or have any suspension or drivetrain mods?

Almost sounds like a drivetrain issue, maybe transmission related.
Reply
Old Oct 11, 2018 | 11:41 AM
  #3  
98Bird's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2006
Posts: 110
Likes: 0
Default

Originally Posted by JD_AMG
Is the car bone stock or have any suspension or drivetrain mods?

Almost sounds like a drivetrain issue, maybe transmission related.
Yes, bone stock. Crap, you think it may be the A4? There's no problem the A4 shifting or anything. I do have HP Tuners and followed a settings on their forums to tighten up the shifts a little. Noticeable, quicker shifts. It's been set like this for over 8 years at least w/o any problems.
Reply
Old Oct 11, 2018 | 09:06 PM
  #4  
JD_AMG's Avatar
TECH Senior Member
 
Joined: Jan 2004
Posts: 5,798
Likes: 16
From: St.Charles MO
Default

Originally Posted by 98Bird
Yes, bone stock. Crap, you think it may be the A4? There's no problem the A4 shifting or anything. I do have HP Tuners and followed a settings on their forums to tighten up the shifts a little. Noticeable, quicker shifts. It's been set like this for over 8 years at least w/o any problems.
Start with the easy stuff and check the trans mount and see if you can see the motor mounts and make sure they are not all cracked and dry rotted. Probably should just go ahead and replace the trans mount (with a stock one) if its the original as far as you know, its cheap and certainly wouldn't hurt.
While you are under there take a look around at everything and see if anything is lose, like the torque arm bolts, LCA bolts, exhaust clamps/bolts and make sure nothing is cracked or anything.

If all that passes your inspection you may want to take a look at the diff and axles and see if something is off there.
Reply
Old Oct 13, 2018 | 08:39 PM
  #5  
Blownbayou's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Dec 2008
Posts: 653
Likes: 6
From: South Louisiana
Default

Originally Posted by JD_AMG
Start with the easy stuff and check the trans mount and see if you can see the motor mounts and make sure they are not all cracked and dry rotted. Probably should just go ahead and replace the trans mount (with a stock one) if its the original as far as you know, its cheap and certainly wouldn't hurt.
While you are under there take a look around at everything and see if anything is lose, like the torque arm bolts, LCA bolts, exhaust clamps/bolts and make sure nothing is cracked or anything.

If all that passes your inspection you may want to take a look at the diff and axles and see if something is off there.
Agree on the trans mount.....
Reply
Old Oct 16, 2018 | 11:16 AM
  #6  
98Bird's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2006
Posts: 110
Likes: 0
Default

Thanks very much, I will check this. How bad is it to keep driving with a broken transmission mount for a while?
Reply
Old Oct 17, 2018 | 12:03 PM
  #7  
cam's Avatar
cam
TECH Junkie
iTrader: (9)
 
Joined: Apr 2004
Posts: 3,389
Likes: 67
From: in the garage
Default

Originally Posted by Blownbayou
Agree on the trans mount.....
x2

Not good to drive much with it corked. Fortunately its a 20 min fix, three bolts. I'd suggest poly for durability but you might get a bit more nvh ( noise vibration harshness ) so if that concerns you there are rubber upgraded ones that have metal hooks in them to keep things lined up when it breaks.

Reply




All times are GMT -5. The time now is 01:33 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE