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

weird exhaust sound

Thread Tools
 
Search this Thread
 
Old 03-21-2003, 04:01 PM
  #1  
On The Tree
Thread Starter
 
ChameleonBird's Avatar
 
Join Date: Feb 2002
Location: Albuquerque, NM
Posts: 133
Likes: 0
Received 0 Likes on 0 Posts

Default weird exhaust sound

When i first start my car I am hearing a loud, humming whinning sound that sounds like an older sci-fi movie's laser special effects! It used to do it once in a blue moon but today it has done it all three times i have started my car! You can hear it pretty clearly from the outside of the car and i have narrowed it down, and I am positive the noise is coming through my exhaust! The only thing that makes the noise stop is to rev the motor, it doesn't even have to be much of a rev just as long as the rev is above idling! My mods are in the sig, does anyone have any experience with a sound like this? Any help will be greatly appreciated <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Old 03-21-2003, 05:33 PM
  #2  
TECH Senior Member
iTrader: (4)
 
trackbird's Avatar
 
Join Date: Oct 2002
Location: OH
Posts: 5,110
Likes: 0
Received 3 Likes on 3 Posts

Default Re: weird exhaust sound

Is it a "resonance" that is like a loose baffle in the muffler? I get that same thing on my 2002 Z-28...but only after I start it....and only until it warms up. I've not narrowed it down, but it sounds like a baffle in the muffler "buzzing".
Old 03-22-2003, 07:18 PM
  #3  
Teching In
 
WildBill WS6's Avatar
 
Join Date: Mar 2003
Location: Houston Tx
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default Re: weird exhaust sound

My car does it also. It only started to do it recently. It sucks but its not hurting anything.
Old 03-24-2003, 11:11 AM
  #4  
Launching!
iTrader: (2)
 
TheDogofWar's Avatar
 
Join Date: Aug 2002
Location: arkansas
Posts: 244
Likes: 0
Received 0 Likes on 0 Posts
Default Re: weird exhaust sound

are you sure it's not just the AIR pump? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />




All times are GMT -5. The time now is 11:00 PM.