Rattle under the gear box

[Maco]

I did a search and did not find anything on this.
I hear a loud rattle coming from under she gearbox at highway speeds of 85 or higher, it's like something is flapping around. Sounds like I'm dragging something underneath but it's it a constant sound so I eliminated that option, it only happens over 85 mph, once I slow down to 80 or less it goes away.
Anyone has the same issue....my r has about 34k miles if it makes a difference.

Thanks for any input.

 

[Millennium Falcon]

Any plastic loose under there?

 

[Maco]

Nope....everything is tight.
If something was loose I'd hear it at lowers speeds though....

 

[freshpots]

Nope....everything is tight.
If something was loose I'd hear it at lowers speeds though....

Not necessarily

 

[qcbtbx]

I had a similar issue. it was the back part of the belly pan, flapping against the car. it only happened at high speeds like yours. have someone drive behind you and tell you if they see anything...that is how i figured out what it was.

 

[PoRsCh3fReAk]

When I did my oil change last week I found the back screws on the engine shield weren't the tightest. I'd go around and check them out or pull it down if there tight and see if something's loose. All are T25 and T30 Torx bits