Quote Originally Posted by WHO1DMC View Post
Have you checked any major components that maybe causing a sympathetic vibration? I'm taking this as something new? I just wonder it your being focused on the effect and not the cause?

Dave B.
I have not really done much to the car but not been driving any long distance in a long time. So I may have had this before but now that I've done most every improvement I'm looking for things to fix now.

We all know noises can be tricky. You may think the sound is at a particular location but it can be elsewhere. I would think it has something to do with engine torque flexing something. What I need is someone to lay on the back shelf to pin down the noise location. They could also feel with their fingers the vibration.