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Vacuum Leak Compendium

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Original source
3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHVacuum Leak Compendium

Leading reported evidence

Replace stick

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

Replaced the stick with a correct 996.2 version from the Porsche vault and all is well.

Original post Read captured discussion
Vacuum Leak Compendium
Frequently discussed work

Check every single vacuum line

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc.

Original post Read captured discussion
Vacuum Leak Compendium
Read full discussion summary

Leading evidence: 'Replace stick' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check every single vacuum line' (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.

Read captured replies

1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check every single vacuum line

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 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 · Original poster

These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc.

Original post Read captured discussion
Vacuum Leak Compendium

Replace oil filler tube seal

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 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 · Original poster

These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc.

Original post Read captured discussion
Vacuum Leak Compendium
Frequently discussed actions (3)

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

Check every single vacuum line

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc.

Original post Read captured discussion
Vacuum Leak Compendium

Replace oil filler tube seal

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc.

Original post Read captured discussion
Vacuum Leak Compendium

Replace stick

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

Replaced the stick with a correct 996.2 version from the Porsche vault and all is well.

Original post Read captured discussion
Vacuum Leak Compendium
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.

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

  • Rennlist: 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: 20261027T201111Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Maybe we can catalogue a significant number of locations/methods/outcomes to have a repository of information? Going through so many of the M96/M97 engine threads, I’ve read a bazillion posts about devilish, untraceable and obvious, fine or large, simple and complex vacuum leaks that wreak havoc on the community. The nefariously tight engine space makes finding one or all of the culprits quite challenging. I can imagine the huge sums of money, bashed hands and heads sacrificed for all the real and imagined vacuum issues we’ve experienced I recently tracked my leaks to a couple of locations. I had post cat codes appearing and one of the 997 posters mentioned these are generally post-throttle body. I bought a smoke machine and found my AOS to TB o-ring was bad. Fixed. Dipstick would sometimes pop out just a little, and not all the time. Replaced the stick with a correct 996.2 version from the Porsche vault and all is well. Oil cap was wonky and difficult to tighten. Bought a new ring and what a difference. There are red and green o-rings. Don’t know if there’s any significant performance or longevity difference. These were found after replacing a bad oil filler tube seal, checking every single vacuum line run, etc. No troubles for the last 150 miles. Smoke machine is right up there with a pressure bleeder for cost/benefit ratio!

This is a source reference. Confirm exact model applicability in the original material.