Noise driving me nuts
Thread Starter
Instructor
Joined: Feb 2006
Posts: 244
Likes: 1
From: manahawkin nj
Noise driving me nuts
I have had my C7 only 2 weeks and I hear something coming from the inside, maybe on the passenger side rear hatch...it only seems to happen when I hit a bump or dip in the road. Has anyone else had this? The best I can describe is it sounds like the plastic is loose.
Le Mans Master
Joined: May 2005
Posts: 6,640
Likes: 279
From: Muscle Shoals, AL
Cruise-In VI Veteran
Cruise-In VII Veteran
There was a post in C7 General about the rear hatch popping over bumps, along with a fix and pics about putting extra gasket under the front of the hatch. I haven't found it yet, but a search will help you.
Race Director
Joined: Mar 2010
Posts: 16,028
Likes: 831
I apologize that you are experiencing concerns with your Vette. I would be more than happy to look into this further for you, although I cannot guarantee the outcome. Please provide me with your contact information, VIN, and your preferred dealership via private message, if this interests you. Hope to hear from you soon!
Jennie R.
Chevrolet Customer Care
Burning Brakes
Joined: Sep 2013
Posts: 1,168
Likes: 137
From: California
Just looked, we're at 1400 miles. First 1K miles, I think we had a total of 3 rattle noises in misc. places in the car. Each lasted a handful of drives then disappeared with no action. Right now - no noises for easily last 10 drives. Just a FYI.
Intermediate
Joined: Apr 2013
Posts: 31
Likes: 0
From: Lubbock Texas
also, I don't know if this is what you're hearing but I noticed a similar rattle which turned out to be the passenger seat belt buckle hitting against the b-pillar. I pulled the lower part of the seat belt housing forward, in front of the seat back, and the rattle stopped.
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Melting Slicks
Joined: May 2001
Posts: 2,596
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From: East Tennessee
Advanced
Joined: Oct 2012
Posts: 67
Likes: 39
My C7 has a vibration rattle only at freeway speeds on rougher pavement. I have isolated the source in the rear hatch gasket, more specifically on the passenger side forward area of the gasket. It is not the gasket itself rather it is where the interior roof panel wraps up and around the roof structure and is covered by the rubber hatch gasket.
To fix this rattle, lift the rubber gasket to expose the edge of the interior roof panel. Pry the panel away from the body frame and stuff some felt or padding material between the two hard surfaces. I have not eliminated the rattle but decreased its frequency by inserting felt at 4 different locations along the gasket area. I'll keep adding more felt until I can silence the rattle 100%.
To fix this rattle, lift the rubber gasket to expose the edge of the interior roof panel. Pry the panel away from the body frame and stuff some felt or padding material between the two hard surfaces. I have not eliminated the rattle but decreased its frequency by inserting felt at 4 different locations along the gasket area. I'll keep adding more felt until I can silence the rattle 100%.
Advanced
Joined: Oct 2012
Posts: 67
Likes: 39
I inserted 1/4" strips of felt with adhesive backing but I have not found the exact spot yet. I have managed to diminish the sound of the rattle but it is still there but not as often. Trouble is, it only happens on certain rough stretches of freeway so rattle testing is not convenient or easy to do.
Intermediate
Joined: Jul 2013
Posts: 44
Likes: 0
I haven't figured out how to get it to stop with the foam piece in place. If anyone has a fix with pictures, it would be cool
Thread Starter
Instructor
Joined: Feb 2006
Posts: 244
Likes: 1
From: manahawkin nj
so far so good
I haven't been able to drive my vette until yesterday, but I moved the seatbelt and the rattle seems to be gone...I will also check the gasket and battery cover too. Thanks
Thread Starter
Instructor
Joined: Feb 2006
Posts: 244
Likes: 1
From: manahawkin nj
not the seatbelt
The noise has never really stopped, I thought it was the seatbelt, but it is not. I think it is the rear hatch...bringing it to Kerbeck this Friday, hopefully they can fix it. I have noticed it is worse on cooler days/temps.
Drifting
Joined: Jun 2007
Posts: 1,425
Likes: 238
From: Macomb MI
I fixed the same issue on two different C7s. Awful squeaky racket. It was due to the rear quarter glass rubber gasket rubbing on the rear quarter panel - on BOTH sides. I found the thread mentioned above, and I would never have believed the noise was coming from outside the car.
But I solved it by REMOVING shims at the first screw in my picture below to create a GAP between the window gasket and body panel.
This was mentioned above, but this looks like it shims the interface tighter rather than removing the interference as I did:
http://forums.corvetteforum.com/c7-g...heres-how.html
My approach:
Push here to see if it squeaks:
If it does, remove this screw:
Remove at least 1 shim:
And you want to create a small gap, then do the press-squeak test again. If it does remove another shim (they were different thickness on mine):
But I solved it by REMOVING shims at the first screw in my picture below to create a GAP between the window gasket and body panel.
This was mentioned above, but this looks like it shims the interface tighter rather than removing the interference as I did:
http://forums.corvetteforum.com/c7-g...heres-how.html
My approach:
Push here to see if it squeaks:
If it does, remove this screw:
Remove at least 1 shim:
And you want to create a small gap, then do the press-squeak test again. If it does remove another shim (they were different thickness on mine):
Last edited by xp800; Apr 29, 2014 at 12:46 PM.
Burning Brakes
Joined: Feb 2002
Posts: 885
Likes: 18
From: McFarland WI
If the rattle is from that plastic cover at the top of the rear window, as
some suggest, GM redesigned that part at some point in the production run to try to fix that. Mine at 9950 had the new part, still
rattles on bumps when very cold but otherwise not at all. Suggestion from the Quality control supervisor at the plant was to ask your dealer
to replace that part it rattle is present.
some suggest, GM redesigned that part at some point in the production run to try to fix that. Mine at 9950 had the new part, still
rattles on bumps when very cold but otherwise not at all. Suggestion from the Quality control supervisor at the plant was to ask your dealer
to replace that part it rattle is present.
