Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

[Z06] HELP!!! rattleing coming from under car!!!

Thread Tools
 
Search this Thread
 
Old Oct 22, 2009 | 12:01 AM
  #1  
datsickz06's Avatar
datsickz06
Thread Starter
Instructor
 
Joined: May 2009
Posts: 208
Likes: 0
From: castaic california
Default HELP!!! rattleing coming from under car!!!

Drove the car to work this morning with no problem.(01 z06).
This afternoon as I drove to the store as soon as I get to the corner of the street ofmy house, I'm about 22mph in 1st gear, as I let go off the gas I begin to hear a loud rattleing noise coming from under the car. I pull off to the side and I put it in nutral and give it a little rev while I look under the car and the noise seems to come from the catalytic converter on the drivers side. I drive the car and motor seems fine and I only hear the noise at lor rpm when letting my foot off the gas. I get home and get a wood stick and put it on the cat while my ear is on the stick and sure enought the noise seems to come from there. Its really loud rattle. Does anyone kno what's up and if it can be something other than the cat. And if its the cat is it still covered under gms emmisions warranty. Car is an 01 z06 with 60,000 miles. Thank in advance for the input
Reply
Old Oct 22, 2009 | 12:21 AM
  #2  
NatB's Avatar
NatB
Burning Brakes
 
Joined: Aug 2007
Posts: 831
Likes: 2
From: Houston Texas
Default

Originally Posted by datsickz06
Drove the car to work this morning with no problem.(01 z06).
This afternoon as I drove to the store as soon as I get to the corner of the street ofmy house, I'm about 22mph in 1st gear, as I let go off the gas I begin to hear a loud rattleing noise coming from under the car. I pull off to the side and I put it in nutral and give it a little rev while I look under the car and the noise seems to come from the catalytic converter on the drivers side. I drive the car and motor seems fine and I only hear the noise at lor rpm when letting my foot off the gas. I get home and get a wood stick and put it on the cat while my ear is on the stick and sure enought the noise seems to come from there. Its really loud rattle. Does anyone kno what's up and if it can be something other than the cat. And if its the cat is it still covered under gms emmisions warranty. Car is an 01 z06 with 60,000 miles. Thank in advance for the input
The H- Pipe "jingle" perhaps ? Have you owned the car a long time?

The factory H- Pipes are notorious for jingling noises especially on deceleration. If it is- no worries and no surgery required.
Reply
Old Oct 22, 2009 | 12:27 AM
  #3  
datsickz06's Avatar
datsickz06
Thread Starter
Instructor
 
Joined: May 2009
Posts: 208
Likes: 0
From: castaic california
Default

I've had the car for around 1 year. What causes the h pipe jingle. And that noice is a bit scarry its loud rattleing like metal is all moving inside the catalytic conv. <-- well that's were I think the rattleing is coming from
Reply
Old Oct 22, 2009 | 12:44 AM
  #4  
Texan1Z06's Avatar
Texan1Z06
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2009
Posts: 755
Likes: 3
From: Houston Texas
Default

Sounds like you have what my Z has on deceleration, gear-changes, rev-deceleration etc.....not sure if its the Ti exhaust or the H-pipe.......

it's discussed here as well......
http://forums.corvetteforum.com/c5-z...m-exhaust.html
Reply
Old Oct 22, 2009 | 10:36 PM
  #5  
slvrzo6's Avatar
slvrzo6
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2007
Posts: 1,969
Likes: 8
From: Champaign IL
Default

I would guess maybe the Heat shield around the Cats? Check if it's loose. Spot welds can give!
Reply
Old Oct 23, 2009 | 08:06 PM
  #6  
z06sicz's Avatar
z06sicz
Instructor
10 Year Member
 
Joined: Jan 2009
Posts: 237
Likes: 2
Default

Originally Posted by slvrzo6
I would guess maybe the Heat shield around the Cats? Check if it's loose. Spot welds can give!
I agree, also it may be the springs that hang the H pipe. They tend to vibrate. Some zip tie them to take the vibes out.
Reply
Old Oct 24, 2009 | 12:19 AM
  #7  
GlenRoseFireFighter's Avatar
GlenRoseFireFighter
Racer
 
Joined: Nov 2008
Posts: 467
Likes: 0
From: Glen Rose, TX
Default

sure it's not your flywheel? In neutral, they chatter like women.
Reply
Old Oct 25, 2009 | 01:22 PM
  #8  
datsickz06's Avatar
datsickz06
Thread Starter
Instructor
 
Joined: May 2009
Posts: 208
Likes: 0
From: castaic california
Default

I believe it is the cat conv, because I looked at the tip of the drivers exhaust and I noticed little gold colored flakes, I believe their from the material inside the cats
Reply

Get notified of new replies

To HELP!!! rattleing coming from under car!!!

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei




All times are GMT -4. The time now is 04:22 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE