suspension clunking

[gordos3]

Hi folk, Am hoping you's can dig me out of a hole again. I have a pretty bad clunking noise coming from the left rear wheel area whenever i go over a bad bump. Its definalty metal to metal noise but i and two mechanics can not source the problem. I have been told they can't find any play in any of the bushes and they can't see any obvoius problems. I have replace the anti roll bar drop link to no evail and now starting to think it could be the wishbone ball joint? The bush on this is split but as i said the mechanic said there is no play in it. Has anyone else came across this or have any ideas to what it could be? I am on the verge of buying a new wishbone but they cost £230 each and would start crying if it turned out not to be that!!any help is greatly appreciated!!!! gordon

[wvicary]

The lower parallel links can make noise but if the suspension is unload using a jack you should be able to find movement in the link. Might be best to try a different garage... nothing wrong with getting a second opinion.

[RFM]

http://www.renntech.org/forums/index.php?a...ost&id=9824

Item # 8 in the exploded view is a well known source of clunking noise, without any visible sign of wear.

[secretagent214]

http://www.renntech.org/forums/index.php?a...ost&id=9824

Item # 8 in the exploded view is a well known source of clunking noise, without any visible sign of wear.

Yeah, that pesky item #8... Both of mine on the rear rattled until I replaced them (noticed at 115k miles or so). Once I replaced them, I realized the fronts were doing it too, just a little more quietly. All 4 are replaced now and it's quiet. For me, the rattle was the most noticeable at low speeds (10-30 mph) over mild bumps and cracked pavement. It seemed worse in hot weather. I couldn't find any play until I actually removed the arm from the car, and even then it was very little. I did the work myself...it's not complicated, but it does involve turning bolts in uncomfortable positions.

Edited May 20, 2009 by secretagent214

[gordos3]

Hi all and thanks for your kind advice. I have now ordered item number 8 and should have it anytime now. Fingers cross it solves my problem cause it seems every little problem turns out to be a nightmare to fix with the boxster, but hey you've got to love it!! I'll keep you's posted on the outcome. Any issue i have is a vibration coming from the rear when sitting at around 3000rpm. any idea's? Spoke to a porsche mechanic and he said its a common problem and it might be the clutch at fault. Again any advice greatly appreciated.

[gordos3]

hey folk, Your advice was spot on. It was item number 8 (lower fork arm) which had a worn bush but because its in a hard place to get to it was hard to tell it was worn until we got it removed fro the car. So thank very much for all your help !! gordon