911uk

Gear box chatter

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2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHGear box chatter

Leading reported evidence

Replace on my my99 c4 83k

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I've just had my gearbox stripped and main pinion bearing replaced on my MY99 C4 83k,
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Gear box chatter

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Leading evidence: 'Replace on my my99 c4 83k' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace on my my99 c4 83k' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 2 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace on my my99 c4 83k

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I've just had my gearbox stripped and main pinion bearing replaced on my MY99 C4 83k,
Original post Read captured discussion
Gear box chatter

Coverage and how to read this overview

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.

911uk: 1 discussions

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

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all :bye: I've just had my gearbox stripped and main pinion bearing replaced on my MY99 C4 83k, The car had an annoying whine from the gearbox through 3,4, and 5th gear under load and hence getting it stripped. This was undertaken during some other work including poly belt, geo, discs, pads. Prior to collecting the car the indy had road tested and said the whine had gone but there was some chatter in second gear. I have collected the car and there is some chatter in second but the gearbox is smooth. Do you think this chatter will diminish or get worse over time? Could this be from the new bearings? Any advice would be much appreciated as I am not too familiar with the internals of the 996's gearbox. Thanks Andy

POST 2 / ORIGINAL POSTEROriginal post

Anybody had their gearbox main pinion bearing replaced or gearbox re-built? :dont know:

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