[Z06] Anyone experienced a vibration resonating sound from exhaust?
03-19-2009, 07:40 PM
#21
Melting Slicks
Thread Starter
No, I dont mean the rubber exhaust hangers, I am referring to the joint between the back boxes and the "X" pipe. On my car to move the back box forward away from the cross member it was necessary to loosen the clamps on these joints. I have LG Headers and X pipe with race cats, maybe mine was getting hotter but the expansion for the back box to touch the bolt on the cross member was quite considerable.
All I know is it cured the problem I had
All I know is it cured the problem I had
The following users liked this post:
sam-garcia (10-25-2023)
03-21-2009, 08:41 PM
#22
Le Mans Master
***update***
I went under the car and found no problems. I sprayed some WD-40 on the flap mechanism. This made it a lot better. If it stays this way I guess I can deal with it....It's almost undetectable.
Ron
**EDIT**
As of today, 3/23 the noise is gone. Seems the WD-40 did the trick!
Ron
**EDIT**
As of today, 3/23 the noise is gone. Seems the WD-40 did the trick!
Last edited by Dr.Ron; 03-23-2009 at 03:19 PM.
03-23-2009, 03:39 PM
#24
Supporting Vendor
Member Since: Nov 2005
Location: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
Posts: 14,498
Received 1,425 Likes
on
597 Posts
St. Jude Donor '08
Good info. My '06 does the same thing, but only after I modded the mufflers. I will have to spray some lube on them I guess.
RICH
RICH
03-23-2009, 04:01 PM
#25
Melting Slicks
Thread Starter
03-23-2009, 04:02 PM
#26
Drifting
I've got a 150 mile '08 that I think is doing the same thing. It is almost a groaning or mooing sound at about 2700 RPM coming from the right rear. I'll try lubing the damper. Never thought about that. The car has been sitting for almost a year.
03-23-2009, 04:49 PM
#27
Advanced
Member Since: Oct 2008
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
noise
i was under my car to remove my z06 setup and noticed that the muffler was hitting the stablizer bar on the outside bottom edge..it seems that the Z06 muffler is heavier than the stock system and pulls down on the rear rubber mounts.. check yours you dont have to lift the car to see it. i have a very small dent but enough to bump it on cornering while hitting an uneven surface.. not often but you can hear it...
03-23-2009, 05:33 PM
#28
Melting Slicks
Thread Starter
Beware these cold temps have been keeping the cars cold. You really have to give it a couple of good runs to get it good and hot before it starts making the noise. Dont be fooled if it seems gone. May just not be hot enough. Atleast for me.
03-24-2009, 06:40 AM
#29
Le Mans Master
I have a Zo6 I just bought and notice this as well. I was thinking exaust again because I had a C6 that did this and it was one mounting bolt on the back. But now I am thinking I have a brake rattling. When I get the sound to happen, if I hold the break slightly and keep accelerating, it will quit. It is driving me nuts thoe!
03-24-2009, 05:43 PM
#30
Melting Slicks
Thread Starter
More trouble shooting today with a 6 channel radio. Got excessive noise when attached to the subframe bolts in the rear and also left hand muffler hanger. More to follow........next week when I replace a few parts to try and narrow it down.
03-25-2009, 03:58 PM
#32
Le Mans Master
So the sound came back... SOMEWHAT....Not everyday. It's too weird. It is absolutely a lot LESS though since I did the WD-40 though.
I don't see anything the mufflers could be touching, so I don't know what else it could be. It truely sounds like the right muffler from the driver's seat....a head scratcher for sure.
Ron
I don't see anything the mufflers could be touching, so I don't know what else it could be. It truely sounds like the right muffler from the driver's seat....a head scratcher for sure.
Ron
03-25-2009, 09:36 PM
#33
Melting Slicks
Thread Starter
So the sound came back... SOMEWHAT....Not everyday. It's too weird. It is absolutely a lot LESS though since I did the WD-40 though.
I don't see anything the mufflers could be touching, so I don't know what else it could be. It truely sounds like the right muffler from the driver's seat....a head scratcher for sure.
Ron
I don't see anything the mufflers could be touching, so I don't know what else it could be. It truely sounds like the right muffler from the driver's seat....a head scratcher for sure.
Ron
The following users liked this post:
sam-garcia (10-25-2023)
03-25-2009, 11:05 PM
#34
Le Mans Master
03-26-2009, 06:19 AM
#35
Melting Slicks
Thread Starter
03-26-2009, 08:50 AM
#36
Procharged F1X 7.18 @ 197
Member Since: Feb 2002
Location: Staten Island NY
Posts: 2,321
Likes: 0
Received 2 Likes
on
2 Posts
St. Jude Donor '09-'10-'11
No sounds from my 08Z.
But my 09Z made this resonance pulling right out of the dealership when new. I have a about 1000 miles and no change.
Hot, cold, gear, MPH, NPP fuse in or out makes no difference.
The resonance starts about 2600 RPM and stops about 3200 RPM.
In my car the resonance seems to be coming somewhere between right below the drivers seat and the rear tires.
A passenger in my car asked if I had a SC installed when they heard the sound ...
.
But my 09Z made this resonance pulling right out of the dealership when new. I have a about 1000 miles and no change.
Hot, cold, gear, MPH, NPP fuse in or out makes no difference.
The resonance starts about 2600 RPM and stops about 3200 RPM.
In my car the resonance seems to be coming somewhere between right below the drivers seat and the rear tires.
A passenger in my car asked if I had a SC installed when they heard the sound ...
.
03-26-2009, 02:13 PM
#37
Drifting
No sounds from my 08Z.
But my 09Z made this resonance pulling right out of the dealership when new. I have a about 1000 miles and no change.
Hot, cold, gear, MPH, NPP fuse in or out makes no difference.
The resonance starts about 2600 RPM and stops about 3200 RPM.
In my car the resonance seems to be coming somewhere between right below the drivers seat and the rear tires.
A passenger in my car asked if I had a SC installed when they heard the sound ...
.
But my 09Z made this resonance pulling right out of the dealership when new. I have a about 1000 miles and no change.
Hot, cold, gear, MPH, NPP fuse in or out makes no difference.
The resonance starts about 2600 RPM and stops about 3200 RPM.
In my car the resonance seems to be coming somewhere between right below the drivers seat and the rear tires.
A passenger in my car asked if I had a SC installed when they heard the sound ...
.
03-26-2009, 05:00 PM
#38
Le Mans Master
My digital camera is m.i.a. currently. If I get a chance over the next day or two, I'll try to take a few pics w/ my cell phone...
Ron
03-26-2009, 08:59 PM
#39
Melting Slicks
Thread Starter
03-27-2009, 01:43 AM
#40
Instructor
Member Since: Mar 2009
Location: Austin TX
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
Just got an 06 Z and have the same issue. It seems to be more apparent in 1st gear up to about 2700 rpm's. Let me know if any of you figure out the solution. It's an 06 Z with 21k miles.