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Discussion summary
YOUR RESEARCHNew front suspension job creeking
Reported or suspected cause
last part
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No successful repair reported for this finding.
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Reported cause
When the sound goes away, I know it was the last part that was sprayed.
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I also had the squeaking sound and it was the top mounts.
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The tie rods and drop links were replaced by the previous owner 2 or 3 years ago.
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Suspected cause
😁 In fact someone far more knowledgeable than me suggested I do the front + rears at the same time, and I think it was the rears that made the most difference.
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Suspected cause
If I remember correctly, it was the three bolts that mount to the body in a triangular arrangement on the front end.
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😁 In fact someone far more knowledgeable than me suggested I do the front + rears at the same time, and I think it was the rears that made the most difference.
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Hi all
recently did new suspension on all 4 corers.
was very deliberate tonfollow correct procedures, torque specs, torqued down everything with the suspension at ride height etc
On my front left im getting a creeking noise when moving slowily and turning over a bump. I had my son bounce the front end up and down and think I have the noise isolated. I can feel it in the tuning fork and the maximal intensity seems to be where it bolts into the center of the coffin arm. All arms are new (meyle).
I removed the bolt holding the tuning fork to the coffin arm and nothing remarkable. Rubber bushing looks good,, no apparent abnormalities at all. I put a little grease around the area and torqued it back down.
Lowered the car and the noise is still there.
I dont think this is coming from the sway bar bushings (i felt over those and even squired a little silicone in there and thar didnt improve it .
Anyone else have a similar problem or thoughts ? just throw a new coffin arm in? I have a lifetime warrantee thru FCP but would really rather diagnose this properly as opposed to sending parts at it
I've had a similar issue since owning my C2, it's very frustrating.
I couldn't figure it out after lots of time and money spent, then asked my indy to diagnose it, nothing. Even had Porsche take a look, they suggested replacing the LCAs. I did, and nothing changed.
Beginning to think the noise might be related to the steering rack. Have you looked at yours?
Bradley
Ill get out there tomorrow and take a clean look again. The point of maximum vibration seems over the coffin arm and when I felt over the outer tie rod I didnt feel it there.
Id imagine you can get a bad new component. Or maybe I overtorqued the thing and damaged it.
Tomorrow I need to do a better job of feeling down the whole lengyh of the LCA while someone bounces the car to see if I can pinpoint it.
When you did the suspension, did you change also the top strut bering at the spring plate? It that is bad an/or dry, it makes a creeking sound.
Here's a part from couple of suppliers:
https://www.design91.uk/p/shock-abso...YaAv_VEALw_wcB
https://www.pelicanparts.com/More_In..._IyEIOccfruBL-
I did a total suspension refresh, including all bolts and nuts, about two years ago. The only thing I didn�t change was the springs. Not long after doing the work a creak developed that was similar in description as yours. I put the car back in the air and methodically re-torqued every single fastener despite having done that during the install. Lo and behold a few bolts moved under torque application and the creak disappeared. If I remember correctly, it was the three bolts that mount to the body in a triangular arrangement on the front end. YMMV.
Thasks for this
I put it back up in the air and loosened and retorqued the outer ball joint on the coffin arm and the center joint where the transverse arm joins the coffin arm. No luck.
Need to bounce it up and down more and ger a better feel for where this is. I can "feel" the noise most intensely on thr hub side of the coffin arm. May wind up just getting a warranty replacement on thar coffin arm as it could be a bad bushng on that brand new arm i suppose.
I have a similar squeak from the front driver's side. it's most noticeable on slow speed compression (and rebound). Like if I'm pulling slowly into my driveway or sometimes, when slow braking to a stop and weight shifts to the front. I figured a video is worth a thousand words.
You Tube
I'm waiting on my front coffin arms and tuning fork from FCP. When I did a visual inspection of the boots and bushing, I did not see any obvious damage like tears but I think the control arms are original. The tie rods and drop links were replaced by the previous owner 2 or 3 years ago.
Good video! The fascinating thing about the 996 is how long the factory suspension arms actually last. 25 years is a long time. While none of us like the increase in factory arm prices, new factory arms will last us a very long time well into the future.
If I'm looking for a creaking sound, I use a silicone spray and each time I spray a different joint, a different rubber part and drive the car. When the sound goes away, I know it was the last part that was sprayed.
I also had the squeaking sound and it was the top mounts.
You'll be really happy you refreshed yours.
I did mine around 44k miles. While the boots themselves
looked
fine, the amount the car tightened up was a significant improvement. 😁 In fact someone far more knowledgeable than me suggested I do the front + rears at the same time, and I think it was the rears that made the most difference. I could move the rear forward arms freely and they both squeaked a bit. Might want to consider that if your rears are in a similar state.
How old are your struts?
Doing both front and rear are the plan since the car is close the 95k miles. I have to do refresh in stages though to allow my wallet to recover in between (I also have a couple of old trucks and an old BMW that need similar love). The rear control arms will have to wait until later this year. Struts also look original but are not leaking and the car is still composed (doesn't dive during braking, stays flat when cornering). It gives me time to think about coilovers or just getting B6's and using my old springs or B8's with lowering springs. I intend to take this car on a cross country drive and don't want to sacrifice too much comfort.
I wouldn�t call B8�s with lowering springs a �comfort� ride. More like very tight and occasionally jarring (depending on the roads of course) - Which I didn�t mind so much, but my partner (now wife) certainly did. I eventually replaced them with KW V3�s (which I got a killer deal on - wouldn�t have bought them at full price). Still super tight but much more compliant over bumps� Good luck
