Odd "clunking" noise coming from rear

[0Bosxter0]

Hey all, I’m kind of new here so ill do my best.

I have a 2000 Boxster with about 62K miles on it. About a month ago I noticed a “clunking” sound when driving over particularly rough roads. I don’t hear it when driving over potholes or large bumps but I do here it over cobblestone roads or roads with a lot of tar patches. It’s kind of a hollow clunking that sounds with each small bump. Also I only hear it when driving between 5 and 25ish miles per hour. I’ve read a few posts on here about it possibly being the rear control arms or maybe the drop links. I’m kind of leaning towards the rear control arms as the culprit.

I was wondering if anyone recently has had any experience with this or has any suggestions on how to diagnose this problem more precisely. Im kind of leaning towards the control arms as being the culprit and I think if I decide this is the problem im going to attempt to replace them myself.

- Ben

[Loren]

:welcome:

The most common cause of this type of noise is a loose swaybar mount.

[0Bosxter0]

:welcome:

The most common cause of this type of noise is a loose swaybar mount.

Loren,

Thanks for the quick reply!

I think I saw that mentioned as well, any chance you could direct me to a post that addresses tightening that swaybar?

-Ben

[leeg]

:welcome:

The most common cause of this type of noise is a loose swaybar mount.

Loren,

Thanks for the quick reply!

I think I saw that mentioned as well, any chance you could direct me to a post that addresses tightening that swaybar?

-Ben

I had what sounds like this and i spent months or diagnosing it. The noise is worse in the summer and is noticable over cobbles, concrete surfaces and drain covers but no speed bumps or potholes. For me i simply took off the Rear Control Arm and applied this fix:

http://www.renntech.org/forums/index.php?showtopic=20681

its been fine ever since apart from the odd rumble, but i can live with that. When you take the arm off it feels fine so dont be suprised.

Real easy to take off as well so do both sides.

Hope it helps.

[Boxsterfahrer]

:welcome:

The most common cause of this type of noise is a loose swaybar mount.

Loren,

Thanks for the quick reply!

I think I saw that mentioned as well, any chance you could direct me to a post that addresses tightening that swaybar?

-Ben

I had what sounds like this and i spent months or diagnosing it. The noise is worse in the summer and is noticable over cobbles, concrete surfaces and drain covers but no speed bumps or potholes. For me i simply took off the Rear Control Arm and applied this fix:

http://www.renntech.org/forums/index.php?showtopic=20681

its been fine ever since apart from the odd rumble, but i can live with that. When you take the arm off it feels fine so dont be suprised.

Real easy to take off as well so do both sides.

Hope it helps.

I am Boxsterfahrer and this repair lasted for about 6 month for me but eventually I had to spring for 2 control arms and replaced them myself. No more clunk from the rear of my 2003 Boxster S.