Please help, top "buzzing" noise...
Instructor
Joined: May 2008
Posts: 176
Likes: 0
From: Burbank CA
Burning Brakes
Joined: Oct 2007
Posts: 1,236
Likes: 0
From: Los Angeles CA
If not, I'm in for a hugeeeee headache
Melting Slicks
Joined: Apr 2003
Posts: 2,083
Likes: 0
From: Summerfield North Carolina
St. Jude Donor '10
it may not be your top or your dash.
Put a couple of pieces of masking tape on the seam where the plastic cowl cover and windshield meet on the outside of your car on the passenger side and see if that makes the noise go away. That plastic piece is probably what is vibrating in the wind because that's what it was on my car. A couple of dabs of silicone sealant to keep it stuck down and the problem should go away.
I thought mine was the top delaminating, but the noise was still there when I switched one top out for another.
It will get worse as time goes on if you don't get it stuck down with sealant or take it to the dealer to do it or replace that plastic cover.
Put a couple of pieces of masking tape on the seam where the plastic cowl cover and windshield meet on the outside of your car on the passenger side and see if that makes the noise go away. That plastic piece is probably what is vibrating in the wind because that's what it was on my car. A couple of dabs of silicone sealant to keep it stuck down and the problem should go away.
I thought mine was the top delaminating, but the noise was still there when I switched one top out for another.
It will get worse as time goes on if you don't get it stuck down with sealant or take it to the dealer to do it or replace that plastic cover.
Le Mans Master
Joined: Oct 2006
Posts: 5,277
Likes: 6
From: (d/fw) tx
it may not be your top or your dash.
Put a couple of pieces of masking tape on the seam where the plastic cowl cover and windshield meet on the outside of your car on the passenger side and see if that makes the noise go away. That plastic piece is probably what is vibrating in the wind because that's what it was on my car. A couple of dabs of silicone sealant to keep it stuck down and the problem should go away.
I thought mine was the top delaminating, but the noise was still there when I switched one top out for another.
It will get worse as time goes on if you don't get it stuck down with sealant or take it to the dealer to do it or replace that plastic cover.
Put a couple of pieces of masking tape on the seam where the plastic cowl cover and windshield meet on the outside of your car on the passenger side and see if that makes the noise go away. That plastic piece is probably what is vibrating in the wind because that's what it was on my car. A couple of dabs of silicone sealant to keep it stuck down and the problem should go away.
I thought mine was the top delaminating, but the noise was still there when I switched one top out for another.
It will get worse as time goes on if you don't get it stuck down with sealant or take it to the dealer to do it or replace that plastic cover.
Pro
Joined: Apr 2007
Posts: 648
Likes: 0
From: Navarre Florida
Finally
I posted this same issue about a year ago with no results. Except mine starts at about 55mph. Pretty annoying. 
Mine also sounds like the passenger side of the windshield. I just happened to be changing my wipers about a month ago, and noticed on my next drive the the buzz was noticeably different. Also, the oe wipers I put on stuck straight about about 1 1/2 inches at the windshield curve. I just happened to have a wiper that was two inches shorter, so I tossed it on. The buzz is almost gone now.
Mine also sounds like the passenger side of the windshield. I just happened to be changing my wipers about a month ago, and noticed on my next drive the the buzz was noticeably different. Also, the oe wipers I put on stuck straight about about 1 1/2 inches at the windshield curve. I just happened to have a wiper that was two inches shorter, so I tossed it on. The buzz is almost gone now.
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Melting Slicks
Joined: Apr 2003
Posts: 2,083
Likes: 0
From: Summerfield North Carolina
St. Jude Donor '10
Burning Brakes
Joined: Apr 2006
Posts: 1,174
Likes: 53
From: Largo Florida
When you are hearing the noise try pressing the recirculation button on the AC system with the ac off. See if that changes the tone of the noise.
Thread Starter
Melting Slicks
Joined: Oct 2007
Posts: 2,772
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From: Fingerlakes Region NY
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Found the source of the noise today. It's the plastic cowl below the windshield wiper on the passenger side. It appeared to be a little loose, so I secured it with masking tape. I drove the car at 60 mph, noise gone. I pulled over and removed the tape, noise back. I'll fasten down the cowl with a little weatherstrip adheasive, problem solved. Hope this helps anyone with the same problem.
Burning Brakes
Joined: Oct 2007
Posts: 1,236
Likes: 0
From: Los Angeles CA
Found the source of the noise today. It's the plastic cowl below the windshield wiper on the passenger side. It appeared to be a little loose, so I secured it with masking tape. I drove the car at 60 mph, noise gone. I pulled over and removed the tape, noise back. I'll fasten down the cowl with a little weatherstrip adheasive, problem solved. Hope this helps anyone with the same problem.
Burning Brakes
Joined: Oct 2007
Posts: 1,236
Likes: 0
From: Los Angeles CA
Anyways, after pressing the recirculation button, the buzzing noise was drastically reduced. It wasn't completely gone, as there was some slight intermittent buzzing, but it was much less noticeable and annoying. I wonder if there's an attached part that's contributing to the buzzing sound. So far, this is the only "solution" I've gotten a chance to try that reduces the buzzing sound.
It seems as if the incoming vented air is passing through something and making it vibrate or resonate against something creating the buzzing noise. It seemed to be a pretty logical answer after noticing the difference with the recirc button on and off.
Found the source of the noise today. It's the plastic cowl below the windshield wiper on the passenger side. It appeared to be a little loose, so I secured it with masking tape. I drove the car at 60 mph, noise gone. I pulled over and removed the tape, noise back. I'll fasten down the cowl with a little weatherstrip adheasive, problem solved. Hope this helps anyone with the same problem.
Instructor
Joined: Apr 2008
Posts: 171
Likes: 1
From: WESTMINSTER CA
After two unsuccessful tries at the dealer. My wife and I drove to work together and decided the noise had to be coming from somewhere around the cowl. When we got out of the car we checked it out and she asked me "how come this thing is so loose?"
"This thing" is the rubber part that is on each end of the plastic cowl cover , beneath each A pillar. There is a rubber tab that inserts into a bracket at the top of the fender. It is visible when you open the door and look into the top of the front door jamb. Mine had come out on the passenger's side allowing the piece to vibrate.
Pushed the tab back in and the noise is gone. Hope this helps.
"This thing" is the rubber part that is on each end of the plastic cowl cover , beneath each A pillar. There is a rubber tab that inserts into a bracket at the top of the fender. It is visible when you open the door and look into the top of the front door jamb. Mine had come out on the passenger's side allowing the piece to vibrate.
Pushed the tab back in and the noise is gone. Hope this helps.
Melting Slicks
Joined: Dec 2000
Posts: 2,076
Likes: 86
From: San Jose CA
Where have you guys been the last couple weeks? There have been several threads about a buzzing noise. Here's the latest:
http://forums.corvetteforum.com/c6-c...ying-buzz.html
It's the rubber trim at the base of the windshield.
http://forums.corvetteforum.com/c6-c...ying-buzz.html
It's the rubber trim at the base of the windshield.
