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YOUR RESEARCHHelp identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported or suspected cause
loose nut
Reported cause
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Reported cause
It turned out to be the a loose nut on the driver's front sway bar links, where the bolt goes through the wheel bearing carrier.
Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'loose nut' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'loose nut' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check the track arms - no' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed
The mounts can be visibly checked, the track arms - no.
Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Install front bolt first
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Performed · outcome unconfirmed
I installed the front bolt first....then the rear.
Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace on my car 2 weeks ago
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Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace pair in my car this morning prior
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Performed · outcome unconfirmed
I just replaced a pair in my car this morning prior to sale transfer.
Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace there's still a banging
No successful repair reported for this finding.
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Performed · outcome unconfirmed
Engine mount was one source of the noise - but even with that replaced, there's still a banging on choppy worn out pavement, from both the front and back.
Help identifying suspension clunk? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
20 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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I started to notice it a few months ago and seems like it’s become more common. It really only makes the noise when going over bumps. The video is attached below. I was driving over a pretty rough uphill road. From doing some research my guess is the track arms but I’m not really sure. Help is appreciated
https://youtu.be/VhTQ3_M8tI4
Track arms or motor and transmission mounts. The mounts can be visibly checked, the track arms - no. The ball joint where they attach to the body can fail, but, because they are always in compression its not possible to see until you remove them. TRW makes them for Porsche. Shop wisely.
Just had them replaced on my car 2 weeks ago. I went with “upgraded” arms recommended by my shop. They certainly look beefier than OEM, but who knows. They cost about half of the OEM parts tho.
Had the same issue. Clunk over bumps. The track arms were probably the culprit, but I opted to rebuild the entire suspension. While I was at it.
Concur that replacing just the track arm is a 30 min/side job. Super simple to do. And if it solves your problems, then perfect.
I'd also take a look at the rear sway bar bushings. There are even easier to replace and a lot cheaper. Could try replacing those 1st before you go after the track arms. Might solve the problem for less money.
But I will say, a full suspension rebuild has done amazing things for the cars driving feel. Feels like a new car!
Good luck.
90% it’s the track arms. Sway bar bushings are unlikely, but it’s obvious if they need replacing. Drop links also wear, but the clunk/rattle is usually track arms as pictured in earlier post. I just replaced a pair in my car this morning prior to sale transfer. If you have impact tools, it takes minutes but remove the wheel and push the rear bolt in, then have a lineup drift for the front bolt and a big pry bar to goose the suspension forward a tiny bit if needed to get the front bolt started. Easy peasy. If you are using hand tools, you need a beaker bar for the front bolt, and pb blaster.
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i have a very similar noise but coming from the front and i can feel it in the steering wheel like someone is lightly tapping with a small hammer....thoughts on what it could be? i initially leaned towards strut mounts but they look good with no visible play and the fact that i "feel" the tapping through the wheel makes me think it is something else.
Appreciate the help and don't mean to jack your thread!
i just got some M030 sway bars so going to swap those with new bushings. Hopefully that fixes or eliminates that as the cause. i should also note i have already changed the sway bar end links. Thanks
I just recently had the same symptoms on my car. Since I rebuilt the suspension just a few thousand years ago, I was concerned about some component failing so soon. It turned out to be the a loose nut on the driver's front sway bar links, where the bolt goes through the wheel bearing carrier. I cranked the nut down, and the noise is gone.
Guess the mechanic that did the work was an idiot. Oh wait, that would be me...
+ 1 ... the good part is that nobody can complain
I guess that the top of my 'famous wrong moves' goes to for not ensuring that the plunger of the slave cylinder was properly seated.. and as soon as I pushed the clutch pedal I heard a clunk noise with the pedal sinking to the floor, getting my brand new Sachs clutch disk completely drenched with hydraulic fluid, needles to say the gearbox came out again..
i am going to put the car up on jackstands to do the sway bar swap and check everything there. i had the noise before i changed the end links and thought those were the issue, turns out it wasnt. I rechecked all the bolts after the noise continued so i am mostly confident they are tight. will give everything a good shaking to see if i can see what may be loose/noisy. I hate just throwing parts at it but its a 97 on original struts and suspension parts so it could be anything really. car only has 53k miles but age is just as detrimental on rubber as mileage.
Yeah Dav on my 99 W/47,000 on it I was looking at the suspension and everything looked good except for the sway bar drop links.
The fronts were totally shot and the backs were half as bad as the fronts...So since the stock links were TRW and they were gone at 47,000 they were probably going bad after 20 or 30,000 so I decided to give another maker a shot and went with Lemfoerder links and they sure look like a great made part so we shall see.
So I've had a similar problem. I've replaced the track arms, noise still there. Drop links, noise still there. Engine mount was one source of the noise - but even with that replaced, there's still a banging on choppy worn out pavement, from both the front and back. Unless it's the tie rods or the control arms, or some loose bolts, I'm at a loss.
Jack the front of the car up and grab a wheel. Try to wiggle side to side. If you can move the wheel then you have a bad tie rod; and if you have a bad outer you may have a bad inner. If you grab the top and bottom of the wheel and can move it back and forth, you have a failed wheel bearing. I did tie rods today. Easy if you have the right tool. Apologies if you knew this.
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