Nope, haven't figured it out yet. But the front rotors are noticeably hotter than the rears after driving so I think my calipers might need rebuilt.

My sound doesn't stop when I left off the gas though, it's wheel speed dependant.

 

Gotcha. Well in that case, mine might actually be tranny related.. Unless I am just paying to much attention to the car and say fug it unless it gets louder at least. I checked everything out underneath and everything seems to be fine..idk

 

Hey there SuperSquirrel,

I'm sorry to hear of the buzzing noise that you have been experiencing in your Cobalt. I understand that you are seeking advice from the other forum members, but we are here if you would like for us to contact your dealership on your behalf in regard to your concern. Feel free to send us a private message in reference to this thread if our help is needed. We look forward to hearing from you!

Kristen A.
Chevrolet Customer Care