2015 Tahoe LTZ rear a/c noise

[Pacdad]

…need help from the Tahoe brain-trust:
When I accelerate or turn right or left I get a noise that sounds like two metal sockets (sae or metric ) “clacking” together. It appears to be coming from the the rear passenger interior side panel. From what I’ve gathered, the a/c ducting is located behind this panel. Anyone have an idea what this may be before I start removing interior panels? It doesn’t sound like “they’re” rolling back and forth, just a quick, but really annoying,“clack”.
Thanks,
Jon

 

[Pscarano]

…need help from the Tahoe brain-trust:
When I accelerate or turn right or left I get a noise that sounds like two metal sockets (sae or metric ) “clacking” together. It appears to be coming from the the rear passenger interior side panel. From what I’ve gathered, the a/c ducting is located behind this panel. Anyone have an idea what this may be before I start removing interior panels? It doesn’t sound like “they’re” rolling back and forth, just a quick, but really annoying,“clack”.
Thanks,
Jon

Any update on this? I’m experiencing the same noise in my 2017 Tahoe. I went through most of the rear interior parts only to find some construction screws left behind from the previous owner in between third row seat frame. I thought that would solve the noise, but no luck. The noise happens periodically when I turn right or left sharply or accelerate or brake too rapidly. Appreciate any help or advice. Thank you