remove dash or live with it?
Thread Starter
Burning Brakes
Joined: Oct 2011
Posts: 956
Likes: 86
From: McDonough Georgia
remove dash or live with it?
My 2012 C6 Grand Sport only has 22000 miles on it and has developed a rattle of sorts under the dash.
At first is was sort of a random little "pop" sort of sound, but now ti happens all the time across the front underside of the dash.
A sort of popping and creaking like you would get on the deck of ship rolling in the ocean.
On the highway with no stress on the frame it doesn't do it. But around town turning and hitting hills and such it is very frequent.
Can anyone shed light on this for me?
At first is was sort of a random little "pop" sort of sound, but now ti happens all the time across the front underside of the dash.
A sort of popping and creaking like you would get on the deck of ship rolling in the ocean.
On the highway with no stress on the frame it doesn't do it. But around town turning and hitting hills and such it is very frequent.
Can anyone shed light on this for me?
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
My 2012 C6 Grand Sport only has 22000 miles on it and has developed a rattle of sorts under the dash.
At first is was sort of a random little "pop" sort of sound, but now ti happens all the time across the front underside of the dash.
A sort of popping and creaking like you would get on the deck of ship rolling in the ocean.
On the highway with no stress on the frame it doesn't do it. But around town turning and hitting hills and such it is very frequent.
Can anyone shed light on this for me?
At first is was sort of a random little "pop" sort of sound, but now ti happens all the time across the front underside of the dash.
A sort of popping and creaking like you would get on the deck of ship rolling in the ocean.
On the highway with no stress on the frame it doesn't do it. But around town turning and hitting hills and such it is very frequent.
Can anyone shed light on this for me?
Well your question is whether or not to tear the dash apart and try and solve the problem. It obviously bothers you or you wouldn't have posted. I predict that you will live with it until you no longer can and then you will attempt to find the cause. The real question is, how long will you live with the annoyance before you can't stand it any longer? And again, since you posted the question, my guess is you will be tearing into the dash sooner than later. But really how can we help you in your decision since we don't have to deal with the annoyance. On the other hand, you could just live with it until your hearing is gone to the point that the noise goes away on its own.
Good luck in whatever you decide.
Team Owner
Joined: Apr 2008
Posts: 22,329
Likes: 1,683
From: South Carolina
Before you do anything make sure it isn't the center speaker/defrost vent grill or even the top. I've had 6 Corvettes and every rattle is hard to find because the car is one bad assed ventriloquist when it comes to weird pops and rattle noises.. 
That little fn grill can make a lot of noise and different times and then be completely silent...
That little fn grill can make a lot of noise and different times and then be completely silent...
Thread Starter
Burning Brakes
Joined: Oct 2011
Posts: 956
Likes: 86
From: McDonough Georgia
I will check the grill, but I'm sure that's not it.
The sound seems to come from across the entire underside of the dash towards the front.
I'm really trying to find out if anyone else has experienced this, and if so, what did they do.
The sound seems to come from across the entire underside of the dash towards the front.
I'm really trying to find out if anyone else has experienced this, and if so, what did they do.
Race Director
Joined: Sep 2009
Posts: 11,338
Likes: 2,438
From: Eastern
It pays to look at every area that you can access, especially under the driver side footwell. There are wires etc that can be hitting the access panel, etc.
Removing the dash would be the last ditch effort IMO. Removing that, and you can create a lot more squeaks and rattles. If nothing loose can be found around the footwell on driver and passenger sides, then remove the radio surround console, the Nav/Radio unit, etc. You may find something rubbing and causing that sound to be transmitted.
Good luck
Report back if you do find the culprit.
Removing the dash would be the last ditch effort IMO. Removing that, and you can create a lot more squeaks and rattles. If nothing loose can be found around the footwell on driver and passenger sides, then remove the radio surround console, the Nav/Radio unit, etc. You may find something rubbing and causing that sound to be transmitted.
Good luck
Report back if you do find the culprit.
Last edited by 4SUMERZ; Aug 28, 2019 at 08:59 PM.
