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03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

Discussion summary

YOUR RESEARCH03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Install sensor

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

I saw on another post there is a sensor that can easily fall out when changing the Fuel Tank Vent Valve, I took it all apart again and correctly installed the sensor that sits in between the fuel tank vent valve on the filler neck.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Fill tank

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

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Install sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill tank' (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 · 10 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Fill tank

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

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Fill tank it wont accept the fuel

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

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Fill with gas

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

With the sensor back in the right place all is well, the noise is gone and I can fill with gas again.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Inspect fuel cap seal very closely - cracked

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

Inspect the fuel cap seal very closely - cracked?

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (8)

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

Fill tank

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

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Fill tank it wont accept the fuel

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

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Fill with gas

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

With the sensor back in the right place all is well, the noise is gone and I can fill with gas again.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Inspect fuel cap seal very closely - cracked

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

Inspect the fuel cap seal very closely - cracked?

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Install sensor

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 saw on another post there is a sensor that can easily fall out when changing the Fuel Tank Vent Valve, I took it all apart again and correctly installed the sensor that sits in between the fuel tank vent valve on the filler neck.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace pump...easy

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

Replaced the pump...easy. Did not solve the problem.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run does the noise go away

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

If you open the fuel tank cap while the engine is running, does the noise go away?

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use "engine ear"

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

Use an "Engine Ear" to pinpoint the exact source of the sound.

Original post Read captured discussion
03 Boxster S...what is this sound ??? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

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

  • 986Forum: 1 discussions

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

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

Outcome without a verified action link

Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.

Original post Read captured discussion

No unique explicit quoted action; no causal link assigned

Generation: 20261026T061123Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Take a listen to this video and let me know if you've had this problem or what you think it may be. Thanks : ) https://youtu.be/c8v8lsIujVc So here is what happened: I heard this noise with no other symptoms, I thought, coming from the tank, no brainer, its the pump. Replaced the pump...easy. Did not solve the problem. Still no other symptoms other than the noise Then I did some more research and found the comments about the Fuel Tank Vent Valve on Filler Neck, (aka Bleeder Valve), I changed that. Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel. So now Im looking for help. Any help is appreciated. Thanks. : )

POST 2Original post

Inspect the fuel cap seal very closely - cracked? Use an "Engine Ear" to pinpoint the exact source of the sound.

POST 3 / ORIGINAL POSTEROriginal post

Thanks, cap is OK. Sound is coming from the hole near the gas cap, you can see in the video the sound stops when I put my finger over it.

POST 4Original post

This noise comes from a bad bleed valve (number 13 on the chart). Part number from 98 on is 996 201 143 01 Regards, Markus

POST 5 / ORIGINAL POSTEROriginal post

Danke Markus, but I have already changed that part. Any other ideas?

POST 6 / ORIGINAL POSTEROriginal post

Well looks like Im off to the independent shop. Damn, in 10 years of having the car other than the clutch this is the only thing I could not do myself. : (

POST 7Original post

Hello Pete, sorry, hadn't seen your last post. If you open the fuel tank cap while the engine is running, does the noise go away? Regards, Markus

POST 8 / ORIGINAL POSTEROriginal post

Thanks everyone for the comments. I saw on another post there is a sensor that can easily fall out when changing the Fuel Tank Vent Valve, I took it all apart again and correctly installed the sensor that sits in between the fuel tank vent valve on the filler neck. With the sensor back in the right place all is well, the noise is gone and I can fill with gas again. : )

POST 10Original post

Fantastic that you were able to determine the issue and fix it yourself.

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