noise from left rear
My 2001Bonneville has developed a rattle that is coming from the left rear. It is loud on rough dirt roads. On the highway the sound turns into a steady shuddering sound and is quite loud. It sounds like something is coming apart. I had the car checked at the dealer and they said the suspension is fine. They said it might be in the left rear door. I don't believe it is in the door. I had someone drive the car while I rode in the back. I opened the door in a parking lot and the noise still appeared to be coming from behind me.