Planet-9

Pie tin noise

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6 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPie tin noise

Reported or suspected cause

oil pressure relief valve

Reported cause

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

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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 report identifying a cause: 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.

Reported cause
The sound you hear is caused by the oil pressure relief valve.
Original post Read captured discussion
Pie tin noise

Read full discussion summary

Leading evidence: 'oil pressure relief valve' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'oil pressure relief valve' (1 discussions; 1 report identifying it and 0 suggest it). 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.

Read captured replies

1 matching discussions · 6 captured posts examined · 1 partial discussions

Compare 1 other evidence results

resonance of the certain rpm

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

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Discussions that suspect a cause: 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.

Suspected cause
I think it was the resonance of the certain rpm that set it off.
Original post Read captured discussion
Pie tin noise

Reported and suspected causes (2)

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

oil pressure relief valve

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that report identifying a cause: 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.

Reported cause
The sound you hear is caused by the oil pressure relief valve.
Original post Read captured discussion
Pie tin noise

resonance of the certain rpm

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
I think it was the resonance of the certain rpm that set it off.
Original post Read captured discussion
Pie tin noise

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.

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

Planet-9: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I seemed to have developed an odd noise in my CS. It only shows up around 2200 RPM and today was the first day I could replicate it by hovering around that RPM. I think it sounds like two empty pie tins being rattled together. I can't reproduce it after a few minutes of driving. Anyone else have this?

POST 2Original post

loose heat shield on my 996 used to do the same thing. I think it was the resonance of the certain rpm that set it off. Dealer tightened it and all was ok.

POST 3Original post

I thought that might be the case but I'm confused about it going away after warm-up. It does sound like a heat shield though. Thanks for the reply.

POST 4Original post

The sound you hear is caused by the oil pressure relief valve. There is a technical bulletin, #1726 I believe, for this issue. Read more here: http://www.planet-9.com/showthread.php?t=3100&highlight=1726 -James

POST 5Original post

Look in Complaints forum. Plenty of info on this here. See my post on it. Jack

POST 6Original post

Thanks everyone. I'll get on it!

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