2006 Chevy Cobalt LTE
My Daughter's 2006 Cobalt makes a noise that sounds like driving over washboards
from about 25mph and up it get louder with speed. no vibration in steering wheel and it
does it with engine in neutral going down highway engine at idle I had tires replaced
and it is not the tires don't feel like it is the drive train. There is some sort of mount (big
round disk looking thing) from engine to steering between engine in firewall and it
appears to have a gap in it. Make me wonder if there is supposed to be a rubber
bushing showing. Any ideas?