Suspension rattle/clunk

[Newfydad]

On a recent trip (1500 mi) I noticed for the first time a kind of clunky rattle noise when driving on anything but smooth roads. Most noticeable at slow speeds on rough asphalt or concrete so its probably a suspension component. Seems to be coming from the passenger side rear. Not really loud but sounds terrible for a car of this caliber. Would appreciate any suggestions what the problem might be and where to start looking. '08 C6A6 coupe with 27K miles. Thanks.
Rod

[tmoorez06]

Originally Posted by Newfydad

On a recent trip (1500 mi) I noticed for the first time a kind of clunky rattle noise when driving on anything but smooth roads. Most noticeable at slow speeds on rough asphalt or concrete so its probably a suspension component. Seems to be coming from the passenger side rear. Not really loud but sounds terrible for a car of this caliber. Would appreciate any suggestions what the problem might be and where to start looking. '08 C6A6 coupe with 27K miles. Thanks.
Rod

I would start by looking at the passenger side mounting bracket of the rear swaybar. I had a similar problem, then came to find out that a bolt to the swaybar bracket had backed out.

I hope this helps,

tmoorez06

[NORTY]

Check yer axle nut(s.)

[Frank]

I had a similar noise on my 2006 F55 vert. It turned out to be a broken shock mount. Good luck.

[Newfydad]

Thanks for the suggestions. I didnt get it resolved in time and now she's asleep for the winter. Next spring......

[HarleyPat]

I have a similar noise coming from the same place but only seems to happen when there is someone in the passenger seat. Dealer said front and rear swaybars...hmmmmm.