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themoj0

Member
Joined
Sep 7, 2018
Messages
13
Location
Phoenix, AZ
Corvette
2008 Convertible
Hope everyone's new year is starting off on the right foot.

So i posed this question on another forum, but all I got was crickets.

I did "sort of" figure it out, but not all of the way.

Right about the time im hitting 60-70 mph, there is a loud humming vibration coming from the front windshield area.
At first it sounded like it was coming from where the ragtop meets the windshield...
But i had my son in the car the other day, and he was able to lean up and really listen. He said it was coming from the bottom of the windshield area...passenger side.
So, for poop and giggles, i turned on the windshield wipers..and sure enough...as the wipers went up, the vibration went away. as they came back down, you can hear it very briefly and lightly, but then its gone again when they go up.
Turn off the wipers, and as they settle back down, the vibration starts back up.
SOooooo is it a bad arm? or maybe just a new blade? Its very loud and obnoxious.
Thanks!

EDIT- 2008 C6 Convertible
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
Hope everyone's new year is starting off on the right foot.

So i posed this question on another forum, but all I got was crickets.

I did "sort of" figure it out, but not all of the way.

Right about the time im hitting 60-70 mph, there is a loud humming vibration coming from the front windshield area.
At first it sounded like it was coming from where the ragtop meets the windshield...
But i had my son in the car the other day, and he was able to lean up and really listen. He said it was coming from the bottom of the windshield area...passenger side.
So, for poop and giggles, i turned on the windshield wipers..and sure enough...as the wipers went up, the vibration went away. as they came back down, you can hear it very briefly and lightly, but then its gone again when they go up.
Turn off the wipers, and as they settle back down, the vibration starts back up.
SOooooo is it a bad arm? or maybe just a new blade? Its very loud and obnoxious.
Thanks!

EDIT- 2008 C6 Convertible


It's probably the blade, try that first on both sides.
 

compyelc4

Well-known member
Joined
May 1, 2002
Messages
600
Location
Dayton, Ohio
Corvette
'95 LT1 Coupe, Comp Yell; C6 Roadster, Vel Yell
Here is exactly what your problem is. My C6 exhibited the same problem a couple of years ago. I noticed the strange humming vibration only when traveling over 60mph into a head wind. Traveling with the wind at the same speed there was no hum. So I figured it was wind related. Sure enough I looked at the plastic cover running across the bottom of the window, just behind the wipers. I noticed that the passenger side one was cracked a small amount longitudinally. I reasoned that wind flowing over it was causing it to buffet. To test the theory I applied a piece of duct tape (I know, but it was just a test) and took it for a drive out on the interstate, first into the wind and then with the wind. Voila! No more buzzing/humming. I removed the tape and tacked the plastic strip down where it was cracked with black silicone. To this day it is quiet. I'll bet you a beer this is your problem.
 

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