I recently started hearing a rattling noise coming from under my 2009 Kia Sedona. I jacked it up and found that a piece had completely rusted off and was just resting on top part of the exhaust system. I couldn't really see exactly where it had been originally attached. I have a few questions:
- Is it some kind of heat shield?
- How vital is it that I replace it?
- Is it part of some larger assembly that would need to be replaced as a whole? Or is there a good way to reattach it without buying a replacement?