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Rattle/odd noise randomly at 3000-3200rpm - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHRattle/odd noise randomly at 3000-3200rpm - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Use lot of plastic and they will rattle

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Suggestion
Porsche uses a lot of plastic and they will rattle.
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Rattle/odd noise randomly at 3000-3200rpm - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Use lot of plastic and they will rattle' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use lot of plastic and they will rattle' (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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Frequently discussed actions (1)

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Use lot of plastic and they will rattle

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

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
Porsche uses a lot of plastic and they will rattle.
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Rattle/odd noise randomly at 3000-3200rpm - 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.

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

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Generation: 20261026T083035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Every so often, right around 3000rpm an odd rattle can be heard. It doesn't happen during typical or aggressive acceleration but only when slowly accelerating and hanging around 3000rpm. No vibration is felt but just a weird rattle sound coming from behind me in the engine area. And it's only in 1st gear and very rarely in 2nd. Any ideas?

POST 2Original post

Worn front engine mounts seem to move the most in that rpm range, how many miles on yours?

POST 3 / ORIGINAL POSTEROriginal post

05 S with 21,700 miles on it. The noise is so random it's driving me crazy. I really have to go from 2700-3200 very slowly to have the best chance of duplicating the rattle.

POST 4Original post

Does the rattle occur with the top up or down ? Or both ?

POST 5 / ORIGINAL POSTEROriginal post

Both top up and down. Definitely sounds like an engine thingy.

POST 6Original post

It could be one of the cats...also, it could the plastic piece that covers the top arm on the inside of the car. You need to move the top to service position and look at them. Porsche uses a lot of plastic and they will rattle.

POST 7Original post

My front engine mount did the vibe at 3200-ish, but only on deceleration. I put a new one in last spring and its fine now... I never had a vibration when accelerating though with my bad front engine mount. My guess would be because the engine torque tightened it up.

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