Rattle rear undertray

[Wing]

This is driving me nuts. It seems tight I'm going to get it on the lift tomorrow to take a closer look.

But has this been found and solved before?

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[FooF]

It sounds like loose bolts. Take each bolt out one at a time and put on some blue loctite and tighten.

 

[Wing]

Thanks will do. Seems to be getting worse over time so makes sense. I originally thought it was the rear parcel shelf.

 

[FooF]

I detailed in an earlier post which bolts I found loose on my truck and where the are located.
https://www.rivianforums.com/forum/threads/rattling-noise-from-front-and-back.19589/#post-405095

 

[Wing]

Ok back to this. Found a bunch of loose bolts and 2 missing. Replaced the missing 2 with bolts I had laying around.

Did not fix the problem I was hearing inside the cabin. Had the wife drive it sounds like it's coming from the drivers side B pillar. Omg it's driving me nuts.

Started ripping apart the b pillar took the bottom pieces off but couldn't get the top of the pillar plastic off and didn't want to break anything so reassembled and have an appointment next Thursday hopefully they have an idea.

Update again.. google worked for me I think it's the b pillar Geiger counter sound. Going to try the documented fixes tomorrow

 

[Wing]

Went out like 5 times it's inside the B pillar 100%. It is driving me mad

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