2002 Sonata...rattling/sqawking noise rear drivers side

[Chiquita]

I have a 2002 Sonata....I'm a newbie to this site.

I was wondering if anyone else has experienced any rattling/squawking noise coming from the rear drivers side..it appears to be coming from wheel well area....just had a complete rear brake job done...noise is still there...my mechanic is puzzled...spent the a few hours trying to figure out the true problem....this started last week..

I have read that there has been problems with rear noise...later required revised anti-sway bar bushings....

Help....

Chiquita