Has anyone experienced this noise before, whenever going over a bump ( one wheel at a time, not both) my car makes the sound your bike derailer makes when going of a curb. Any one heard this before. It's been there for a while just trying to identify it.

 

Are u referring to the struts compressing, like a hissing sound

Or a squeak

 

That's a normal sound (hissing), if it's the struts.

 

Its not a hissing sound, it sounds like a chain. Have you ever rode your bike off a curb and heard the sound your derailer / chain makes. It sounds very similar to that.

 

That doesn't sound normal.

 

I think its the lower control arm bolt.