Hello all. I have an 08 expedition with 244K miles. I just got it and it has a pretty annoying rattle creak sound under the rear somewhere. I thought it was the back hatch or glass but today I was standing at the back with it running and the hatch open and I heard it outside underneath the back. It’s resonating on the body somewhere because it’s much louder inside than out.
anybody have a suggestion on where to begin?

 

spare tire loose?
Jack & accessories above the spare?

 

I sorted it out. The tailpipe was hitting the body where it goes over the rest suspension.