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Knocking / dull clunk noise with right turns

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Hello,

I have a Model S with ~36k miles and I have noticed recently that I get a knocking/dull clunk noise (almost like a loose muffler hitting the chassis) from passenger rear only when making right turns and sometimes going up/coming off high curbs (e.g. driveway). Driving straight, left turns even on bumpy roads is fine. Took it into the SC and they replaced the Air Spring Module and the drop link sway bar but that didn't do anything. I am almost to the point of paying an independent mechanic (even a non-tesla) to diagnose it and then take the feedback to the SC. Any tips on the issue or independent Tesla mechanics in the Chicago area would be appreciated.

Thanks,

Manish
 
First step is usually to ensure all suspension bolts back there are torqued down to proper spec. Then check for excess play in bushings/ball joints. (need a lift, and prybar)

And hope its not more serious