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Noise from the gas tank

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHNoise from the gas tank

Leading reported evidence

Replace valves

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
When I searched for a fix it appears most people fixed it with replacing the valves, but it didn�t work for him.
Original post Read captured discussion
Noise from the gas tank
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Frequently discussed work

Replace according

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
The purge valve was replaced according to the dealer, but will try putting my finger over the vent.
Original post Read captured discussion
Noise from the gas tank

Read full discussion summary

Leading evidence: 'Replace valves' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace according' (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 · 6 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace valves and it was

Performed · outcome unconfirmed

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
So far he has replaced all the valves and it was recommended that he replace the DME which he did and it is still there.
Original post Read captured discussion
Noise from the gas tank

Replace according

Suggestion or failed attempt

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
The purge valve was replaced according to the dealer, but will try putting my finger over the vent.
Original post Read captured discussion
Noise from the gas tank

Replace cap

Suggestion or failed attempt

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
The one on my 2002 Boxster was not leaking but when the tether broke and I replaced the old cap with a new one I noticed the old cap's sealing was dry and cracked and could develop a leak sooner rather than later.
Original post Read captured discussion
Noise from the gas tank

Replace dme

Suggestion or failed attempt

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
So far he has replaced all the valves and it was recommended that he replace the DME which he did and it is still there.
Original post Read captured discussion
Noise from the gas tank

Frequently discussed actions (5)

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

Replace according

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
The purge valve was replaced according to the dealer, but will try putting my finger over the vent.
Original post Read captured discussion
Noise from the gas tank

Replace cap

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
The one on my 2002 Boxster was not leaking but when the tether broke and I replaced the old cap with a new one I noticed the old cap's sealing was dry and cracked and could develop a leak sooner rather than later.
Original post Read captured discussion
Noise from the gas tank

Replace dme

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
So far he has replaced all the valves and it was recommended that he replace the DME which he did and it is still there.
Original post Read captured discussion
Noise from the gas tank

Replace valves

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
When I searched for a fix it appears most people fixed it with replacing the valves, but it didn�t work for him.
Original post Read captured discussion
Noise from the gas tank
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Replace valves and it was

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
So far he has replaced all the valves and it was recommended that he replace the DME which he did and it is still there.
Original post Read captured discussion
Noise from the gas tank

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.

Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.

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

Generation: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My Dad has an 03 996 and sometimes the gas tank makes a howling noise from the filler neck which you can hear from inside the car. So far he has replaced all the valves and it was recommended that he replace the DME which he did and it is still there. It appears it only does it when it is either idling or very light on the throttle. When I searched for a fix it appears most people fixed it with replacing the valves, but it didn�t work for him. Does anybody have a fix for this? Thanks

POST 2Original post

Quotes source post: 12942867

What about the gas cap? The one on my 2002 Boxster was not leaking but when the tether broke and I replaced the old cap with a new one I noticed the old cap's sealing was dry and cracked and could develop a leak sooner rather than later. However I would think if the cap was leaking enough to cause noise the CEL would be on. In fact if anything related to the gas tank and the vapor recovery system as bad enough to generate noise I would expect a CEL. Are you sure the noise is from the filler neck area? The noise can instead be a radiator fan motor or even an issue from the A/C system.

POST 3Original post

What "valves" did he replace? The purge valve at the throttle body is often the culprit for the squeal, hoot, moan, howl. When it does this put your finger over the small rubber vent in the fuel filler well. If you can stop the sound by covering that vent you are pulling vacuum, which the purge valve controls, from the engine.

POST 4Original post

Quotes source post: 12945099

+996 It's almost always the purge valve that is at fault. If you open the full door and to the right side of where the fuel lid is there is an opening with a plastic grommet. If you stick your finger in there does the noise stop? If it does this is a good indication that it's the purge valve - HERE .

POST 5 / ORIGINAL POSTEROriginal post

Thanks guys. Tried the gas cap, but the noise is still the same with it off (it just gets louder). The purge valve was replaced according to the dealer, but will try putting my finger over the vent.

POST 6Original post

Quotes source post: 12946731

Report back after you do this as it'll help give us an answer.

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