997.1 gt3 rattling / clunking sound left front when warm
Discussion
9971gt3 said:
Ok, I think that is ok after some use now.
But you also said something else about the brakepads rattling? Is that maybe the problem here?
I think it's very unlikely, I'd be inclined to look at the anti roll bar bushes, anti roll bar drop link ends, or the coffin arm balljoints, or the coffin arm inner bushes. But you also said something else about the brakepads rattling? Is that maybe the problem here?
Thanks.Yesterday I went for a 2 hour drive to try get the sound and record it. But it was almost no rattling at all, only one sec at the end of the trip while going in to the garage. It was 2 hours with both highway and B-roads 80-120kmh. The climate is colder here where I am now(norway)
The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
9971gt3 said:
Thanks.Yesterday I went for a 2 hour drive to try get the sound and record it. But it was almost no rattling at all, only one sec at the end of the trip while going in to the garage. It was 2 hours with both highway and B-roads 80-120kmh. The climate is colder here where I am now(norway)
The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
If you enable your PH account to accept emails, I'll send you some suggestions as to how to eliminate some of the bushes and balljoints from the equation, establishing which components are causing the noise should then be more straightforward.The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
9971gt3 said:
Thanks.Yesterday I went for a 2 hour drive to try get the sound and record it. But it was almost no rattling at all, only one sec at the end of the trip while going in to the garage. It was 2 hours with both highway and B-roads 80-120kmh. The climate is colder here where I am now(norway)
The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
These are the exact symptoms I had for almost 2 years. Only after long drives the knocking would start when diving slowly. The annoying rattling sounds first came after driving hours on highways in Germany with higher avarage speed. It was there constantly at low speeds after going off the highway. The temperature were 10 degrees higher at that time.
Should I just wait to see if it get worse?
Yesterday I had a longer trip and the sound came back after a few hours. No need to turn or brake. Its constantly there after some time. In speeds up to 50kmh then I think engine/road noise are too loud to hear.
https://vimeo.com/manage/videos/692582558
https://vimeo.com/manage/videos/692578849
https://vimeo.com/manage/videos/692582558
https://vimeo.com/manage/videos/692578849
Hi, I’m from Taiwan, just got a 08 997.1 GT3 and found same weird sound as your video.
Do you figure out the root cause and problem solved from your last post? Thanks!
Do you figure out the root cause and problem solved from your last post? Thanks!
9971gt3 said:
Yesterday I had a longer trip and the sound came back after a few hours. No need to turn or brake. Its constantly there after some time. In speeds up to 50kmh then I think engine/road noise are too loud to hear.
https://vimeo.com/manage/videos/692582558
https://vimeo.com/manage/videos/692578849
https://vimeo.com/manage/videos/692582558
https://vimeo.com/manage/videos/692578849
Heres another video. Driving slow on a pretty flat straight road. The sound turns up after 30-60 minutes drive.
The sound does not get any worse on dumps or when dampers are more compressed.
Have lubricated swaybar bushings and top mounts with no result.
I spoke to bilstein rebuild service in UK and they can rebuild the dampers. And they said this is a common problem and maybe my problem according to what I told them.
What do you think?
https://vimeo.com/768275822
The sound does not get any worse on dumps or when dampers are more compressed.
Have lubricated swaybar bushings and top mounts with no result.
I spoke to bilstein rebuild service in UK and they can rebuild the dampers. And they said this is a common problem and maybe my problem according to what I told them.
What do you think?
https://vimeo.com/768275822
9971gt3 said:
Does anyone have a DIY or youtube link on how to remove/replace 997 front damper?
It's not a video, but this is one of many excellent how-to guides you can find on Pelican Parts. There's a step-by guide as well as helpful pics at the bottom.https://www.pelicanparts.com/techarticles/Porsche-...
Hope this helps.
It's the front control arms. Only happens when warm - after driving - and worse at low speeds on rough surface, and often heading down hill. Sounds a bit like snooker balls in box.
They will feel normal - ie no movement - when checked but take them off and the play becomes apparent. Not generally an issue for handling, just an annoying noise.
Had this twice on my car.
They will feel normal - ie no movement - when checked but take them off and the play becomes apparent. Not generally an issue for handling, just an annoying noise.
Had this twice on my car.
Edited by Discombobulate on Friday 2nd December 12:09
Discombobulate said:
It's the front control arms. Only happens when warm - after driving - and worse at low speeds on rough surface, and often heading down hill. Sounds a bit like snooker balls in box.
They will feel normal - ie no movement - when checked but take them off and the play becomes apparent. Not generally an issue for handling, just an annoying noise.
Had this twice on my car.
There are so many saying that its the DU bushes in the bilstein dampers and some also think its the droplinks. And now we have the control arms. Are all these parts making the same rattling/clunking like the videos I posted?They will feel normal - ie no movement - when checked but take them off and the play becomes apparent. Not generally an issue for handling, just an annoying noise.
Had this twice on my car.
Edited by Discombobulate on Friday 2nd December 12:09
9971gt3 said:
There are so many saying that its the DU bushes in the bilstein dampers and some also think its the droplinks. And now we have the control arms. Are all these parts making the same rattling/clunking like the videos I posted?
Everyone could be right. But I have done 60k in my car and had it happen twice - sounds just like yours - and control arms was the problem. The clue is that the problem isn't there when cold which it probably would be with drop links and top mounts. The control arm does get warmer, but most importantly has metals / ball joint that expand differently (the aluminium arm more than the steel bits) allowing movement when hot.But the only way to be sure is to change the bits and see. Up to you where you start. Been there so know what it feels like
Mine was diagnosed by Pete at Center (sic ) Gravity. You could always try sending him the video..
Good luck.
9971gt3 said:
There are so many saying that its the DU bushes in the bilstein dampers and some also think its the droplinks. And now we have the control arms. Are all these parts making the same rattling/clunking like the videos I posted?
The dampers were my problem 60k + miles....Could have had them serviced, but replaced with ohlins (bilsteins now sitting on a shelf). I've now a more adjustable, compliant suspension set up...so win, winGassing Station | Porsche General | Top of Page | What's New | My Stuff