i have a mazda 3, everytime i hit a bump a rattling noise comes from the rear passenger side, my struts shocks sway bar links and everything is fine, i took it to 3 different mechanics and they couldnt find anything wrong with it, any ideas on what the rattling is coming from?

 

hey, there is a possibility that the suspension link would have loosened; you can also get the ball joints checked.

 

could be something loose in the rear quarter panel

 

I doubt the mechanic is putting arm strength on the shock equivalent to what the car does. I have something making a knocking kind of noise in mine and I'm pretty sure it's the upper shock bushings.