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

GMMG on, now vibrations, help

Thread Tools
 
Search this Thread
 
Old Oct 21, 2005 | 07:31 PM
  #1  
cedric85745's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jul 2005
Posts: 178
Likes: 0
Default GMMG on, now vibrations, help

so I have the GMMG on for a week now, I get a loud buzzing sound from the rear of the car; it only does it when the car is sitting and idling ,
is it a bad hanger, or something that <i should tigh, it sounds like a body panel buzzing , kind of the same when people have loud subs banging the car
help help help , its annoying
cedric
Reply
Old Oct 21, 2005 | 07:55 PM
  #2  
Arachnotron's Avatar
TECH Fanatic
 
Joined: Jan 2004
Posts: 1,310
Likes: 0
From: Friendswood, TX
Default

Check the pipe that goes over the axel. I had to put a spacer on the passenger's side hangar to raise that side up.
I have also heard that some people get rattles from the heat shilding, so you may have to bend that a bit.
Reply
Old Oct 21, 2005 | 07:58 PM
  #3  
cedric85745's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jul 2005
Posts: 178
Likes: 0
Default

Thank you for your fast post, I think I ll take it to the guy who installed it and let him deal with, I mean my cout out was ' times louder and nothing was banging, so you re right it has to be something touching
I ll check it out

thank

is it something most GMMG on stock manifold get §
Reply
Old Oct 21, 2005 | 07:59 PM
  #4  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

Heat shield ...
Reply
Old Oct 21, 2005 | 10:58 PM
  #5  
NOZR1's Avatar
TECH Apprentice
iTrader: (5)
 
Joined: May 2003
Posts: 378
Likes: 0
From: DE
Default

I also say heat shield.
Reply
Old Oct 22, 2005 | 12:12 AM
  #6  
kmdracer's Avatar
On The Tree
 
Joined: Jul 2002
Posts: 160
Likes: 0
From: Wharton, Tx
Default

Hmm, I put the GMMG on an otherwise stock exhaust. Didn't have any problems whatsoever. I'd check the heatshields as suggested above. Good luck!
Reply
Old Oct 22, 2005 | 12:46 AM
  #7  
cedric85745's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jul 2005
Posts: 178
Likes: 0
Default

tahnk you , will do !!
Reply




All times are GMT -5. The time now is 04:29 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