Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

bad balancer (vibration @2500)

Thread Tools
 
Search this Thread
 
Old Oct 5, 2011 | 02:05 PM
  #1  
kornerz's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Oct 2009
Posts: 151
Likes: 0
From: socal
Default bad balancer (vibration @2500)

I have a 2004 m6 gto and I've noticed it has a slight vibration from 2200 to 2800. Anything after 3000 its smooth as can be. Its not in the drive line. It does it in neutral too. I think I'm going to start with the balancer first. Any ideas?
Reply
Old Oct 6, 2011 | 08:48 AM
  #2  
kornerz's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Oct 2009
Posts: 151
Likes: 0
From: socal
Default

Update-still doing it today. Lol
Reply
Old Feb 4, 2012 | 11:06 AM
  #3  
WetChicken's Avatar
Staging Lane
iTrader: (1)
 
Joined: Jul 2006
Posts: 63
Likes: 0
From: Concord, New Hampshire
Default

My 98 W/T-56 has developed the same issue.

OP: Did the balancer fix the issue?

Does anyone have other ideas for the problem?


Thanks!
Reply
Old Feb 4, 2012 | 02:58 PM
  #4  
Bramlok's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jun 2010
Posts: 635
Likes: 0
From: IL
Default

Could be a flywheel issue also? But the balancer would be easier to start with.
Reply
Old Feb 4, 2012 | 04:15 PM
  #5  
sepsis's Avatar
TECH Fanatic
10 Year Member
iTrader: (7)
 
Joined: Dec 2011
Posts: 1,003
Likes: 0
From: Tampa-ish
Default

My old Mustang did the same thing. I changed the balancer and it fixed the problem.

I could visually see the balancer kinda wobbling though.
Reply
Old Feb 4, 2012 | 05:16 PM
  #6  
Burken01's Avatar
TECH Addict
20 Year Member
iTrader: (88)
 
Joined: Mar 2005
Posts: 2,925
Likes: 14
From: Anaheim, Ca
Default

is the balancer on all the way, It's such a tight fit so sometimes its hard to see if its all the way on the crank...

have your been throwing belts off under acceleration? if so, then its crooked. or you might want to step up to an ATI super damper to combat vibration..
Reply
Old Feb 4, 2012 | 05:37 PM
  #7  
bww3588's Avatar
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default

installing an upgraded dampner will not help vibrations other than vibrations rooting from the dampner itself. the dampner does nothing but keep engine vibrations out of the accessory drive, and turn it.

if there is a vibration from the engine, this needs to be addressed seperatly, changing the dampner will not cure an internal engine vibration.
Reply
Old Feb 4, 2012 | 10:05 PM
  #8  
3rdCoastPowerSports's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Jun 2011
Posts: 1,154
Likes: 6
From: Loony Bin
Default

hence the term internally balanced
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 10:05 PM.

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