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Vibration caused by worn shock absorber? - Page 1 - 911/Carrera GT - PistonHeads UK

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YOUR RESEARCHVibration caused by worn shock absorber? - Page 1 - 911/Carrera GT - PistonHeads UK

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Suggestion · Original poster

Any views if this diagnosis seems like a bit of a guess or ideas of what else should be checked first?

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Vibration caused by worn shock absorber? - Page 1 - 911/Carrera GT - PistonHeads UK
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Leading evidence: 'Check first' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check first' (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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1 matching discussions · 2 captured posts examined · 1 partial discussions

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Check first

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Any views if this diagnosis seems like a bit of a guess or ideas of what else should be checked first?

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Vibration caused by worn shock absorber? - Page 1 - 911/Carrera GT - PistonHeads UK
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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.

2 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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Generation: 20261027T154520Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I've got a Gen 1 997 C4s which had an unfortunate night-time interface with a lump of timber that had dropped off a lorry and was left across the slip road to a motorway. There was no visible damage, but following this the car developed a vibration at about 100 Kph, give or take 10 kph either way, much like when a wheel is out of balance. The diagnosis from the garage (a very well trusted Porsche specialist here (there's no point going to the local OPC) was that one front wheel needed to be straightened and the other replaced as it was out of shape in two directions. This has been done and the car is now pretty much back to as it should be, but there is still a slight vibration/wobble through the steering at around 90 - 100 Kph. They are now telling me that they feel the remaining vibration could be cured with two new dampers. I've got no reason not to trust them from past experience, but this does seem a bit odd to me. I'm no mechanical expert, but I struggle to see why a damper would have this effect at a specific speed and not get worse the faster the car travels. Any views if this diagnosis seems like a bit of a guess or ideas of what else should be checked first? Thanks Edited by TNW on Friday 3rd April 18:55

POST 2Original post

My first step would be to have to wheels re-balanced, then if the issues persists, maybe take it somewhere for a second opinion.

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