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

Very bad sounding noise what is it?

Thread Tools
 
Search this Thread
 
Old Aug 24, 2008 | 06:55 PM
  #1  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default Very bad sounding noise what is it?

I think the noise is a o2 sensor or the cat. the noise is like a lound rattleing that i can only hear when the car is not moving, on the highway you would never know, but when i stop its loud, at idle and if i raise the rpms the louder it gets what is this noise has anyone else had this happen they are all original parts with 80,000 miles thank you
Reply
Old Aug 24, 2008 | 06:57 PM
  #2  
94'BLKBRD's Avatar
TECH Addict
iTrader: (76)
 
Joined: May 2005
Posts: 2,976
Likes: 0
From: SoCal
Default

Maybe its an internally broken cat
Reply
Old Aug 24, 2008 | 07:05 PM
  #3  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

thats what im hoping i know its coming from the passengers side
Reply
Old Aug 24, 2008 | 07:13 PM
  #4  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

what would be a good replacement cat. im thinking magnaflow there probely the best deal for the money
Reply
Old Aug 24, 2008 | 07:33 PM
  #5  
94'BLKBRD's Avatar
TECH Addict
iTrader: (76)
 
Joined: May 2005
Posts: 2,976
Likes: 0
From: SoCal
Default

Have a gm dealer replace it for free!
Reply
Old Aug 24, 2008 | 07:44 PM
  #6  
johnLs1camaro's Avatar
TECH Fanatic
iTrader: (28)
 
Joined: Nov 2006
Posts: 1,757
Likes: 4
From: NA,Indiana/louisville, ky
Default

^^ how could he do that??
Reply
Old Aug 24, 2008 | 11:37 PM
  #7  
mvvette97's Avatar
TECH Fanatic
20 Year Member
iTrader: (18)
 
Joined: Oct 2005
Posts: 1,767
Likes: 2
From: Leon Iowa
Default

GM has an 8 year 80k warranty on the cats. I'm sure it's the 8 year but the milage may be off, not sure. If so if you have a good dealer they can do some changing VINs and such if you are over the milage to get the cats for free. That just depends on the dealer though.
Reply
Old Aug 24, 2008 | 11:39 PM
  #8  
03 snake's Avatar
Staging Lane
iTrader: (28)
 
Joined: Jul 2008
Posts: 84
Likes: 0
From: Austin
Default

I agree damaged cat or heat shield (if you have one)
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
Old Aug 25, 2008 | 08:26 AM
  #9  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

heatsheild? i dont think so its loud
Reply
Old Aug 25, 2008 | 08:29 AM
  #10  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

Originally Posted by mvvette97
GM has an 8 year 80k warranty on the cats. I'm sure it's the 8 year but the milage may be off, not sure. If so if you have a good dealer they can do some changing VINs and such if you are over the milage to get the cats for free. That just depends on the dealer though.
that would be nice
Reply
Old Aug 25, 2008 | 11:45 AM
  #11  
Weezzer's Avatar
TECH Resident
 
Joined: Jan 2003
Posts: 937
Likes: 0
From: South Alabama
Default

Originally Posted by mvvette97
GM has an 8 year 80k warranty on the cats. I'm sure it's the 8 year but the milage may be off, not sure. If so if you have a good dealer they can do some changing VINs and such if you are over the milage to get the cats for free. That just depends on the dealer though.
I believe for the 2002's it was raised to 10 yr/120,000 miles.

At least mine was, I got the letter from GM right after I removed all my stock stuff for ARH headers...
Reply
Old Aug 25, 2008 | 12:09 PM
  #12  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

Originally Posted by Weezzer
I believe for the 2002's it was raised to 10 yr/120,000 miles.

At least mine was, I got the letter from GM right after I removed all my stock stuff for ARH headers...
i am not the original onwer does that matter? if i could get free ones that would be great.
Reply
Old Aug 25, 2008 | 12:19 PM
  #13  
LS184's Avatar
TECH Resident
iTrader: (7)
 
Joined: Apr 2006
Posts: 967
Likes: 0
From: manhattan/new lenox, IL
Default

sounds like the honeycomb inside tht cat broke apart and is ratteling around
Reply
Old Aug 25, 2008 | 12:22 PM
  #14  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

Originally Posted by LS184
sounds like the honeycomb inside tht cat broke apart and is ratteling around
that was my thought
Reply
Old Aug 25, 2008 | 12:45 PM
  #15  
94'BLKBRD's Avatar
TECH Addict
iTrader: (76)
 
Joined: May 2005
Posts: 2,976
Likes: 0
From: SoCal
Default

Time to go to your local dealer for a new cat
Reply
Old Aug 25, 2008 | 12:53 PM
  #16  
2002Z28Camaro's Avatar
Thread Starter
Launching!
iTrader: (2)
 
Joined: Aug 2007
Posts: 281
Likes: 0
From: Texarkana, Texas
Default

Originally Posted by 94'BLKBRD
Time to go to your local dealer for a new cat
im the 2nd owner does that matter? and if its 8 years 80k i have more like 81,461 miles
Reply
Old Aug 25, 2008 | 01:09 PM
  #17  
5.3LJimmy's Avatar
10 Second Club
20 Year Member
iTrader: (10)
 
Joined: Jun 2004
Posts: 2,279
Likes: 1
From: Napoleonville, LA
Default

It doesn't matter that you're not the original owner. I believe Weezzer is correct on the yr and mileage extension. I'm sure it's worth a trip or call to the dealer to find out for sure.
Reply
Old Aug 25, 2008 | 01:37 PM
  #18  
mvvette97's Avatar
TECH Fanatic
20 Year Member
iTrader: (18)
 
Joined: Oct 2005
Posts: 1,767
Likes: 2
From: Leon Iowa
Default

yea it doesn't matter how many owners the car has had.
Reply
Old Aug 25, 2008 | 01:48 PM
  #19  
Zzzzz's Avatar
On The Tree
iTrader: (2)
 
Joined: Jul 2005
Posts: 129
Likes: 0
From: Cleveland, OH
Default

If you want, PM me a VIN and I'll tell you the exact date/miles you're covered for.
Reply
Old Aug 25, 2008 | 02:37 PM
  #20  
00_transam_vert's Avatar
Launching!
iTrader: (5)
 
Joined: Oct 2007
Posts: 229
Likes: 0
From: Swift Current, Saskatchewan, Canada
Default

Time for Headers and ORY
Reply



All times are GMT -5. The time now is 03:26 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