Porsche Club GB

Fuel tank valve????

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHFuel tank valve????

Leading reported evidence

Install under warranty

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
Need to book the car in again to have these parts fitted under warranty.
Original post Read captured discussion
Fuel tank valve????

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Leading evidence: 'Install under warranty' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'tank venting valve/evaporative canister purge valve' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install under warranty' (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 · 9 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace fan resistors and the fuel vent valve

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
well, the garage changed both fan resistors and the fuel vent valve...
Original post Read captured discussion
Fuel tank valve????

tank venting valve/evaporative canister purge valve

Suggestion or failed attempt

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
It is probably the tank venting valve/evaporative canister purge valve.
Original post Read captured discussion
Fuel tank valve????

Frequently discussed actions (2)

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

Install under warranty

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
Need to book the car in again to have these parts fitted under warranty.
Original post Read captured discussion
Fuel tank valve????

Replace fan resistors and the fuel vent valve

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
well, the garage changed both fan resistors and the fuel vent valve...
Original post Read captured discussion
Fuel tank valve????

Reported and suspected causes (1)

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

tank venting valve/evaporative canister purge valve

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
It is probably the tank venting valve/evaporative canister purge valve.
Original post Read captured discussion
Fuel tank valve????

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.

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

Porsche Club GB: 1 discussions

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

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

Outcome without a verified action link
I have to agree with you, I dont think its this valve but I'll get this fixed and see....
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

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

POST 1 / ORIGINAL POSTEROriginal post

Hi, Car went to the garage today and the diagnostics found a faulty fuel tank valve??? Can not remeber the fault code though. They have ordered the part and I need to book in to get it replaced. What does it do? what happens when it goes wrong?? thanks Jetbox

POST 2Original post

It is probably the tank venting valve/evaporative canister purge valve. If it fails, it makes the mixture slightly rich or lean, depending if it fails open or closed. This would give a fault code, but wouldn't trigger the Check Engine light (on a UK car).

POST 3 / ORIGINAL POSTEROriginal post

thanks. can the valve get noisy? clicking open and closed all the time??

POST 4Original post

It could, as it is a solenoid valve. Item 5:

POST 5Original post

And this shows when it operates, so that you know when to listen for it:

POST 6 / ORIGINAL POSTEROriginal post

thanks richard. I took the car back to opc for l/h radiator resistor and tapping noise from the left bank. The resistor is on order and they say the vent valve is causing the noise... Need to book the car in again to have these parts fitted under warranty. Will let you know if they cure the problem many thanks

POST 7Original post

Maybe I'm confused here, and there are two issues, but I doubt very much if the vent valve would cause a tapping noise from the left bank. It is located right at the top of the engine, and solenoids make a buzzing sound when they play up, not a tapping sound.

POST 8 / ORIGINAL POSTEROriginal post

I have to agree with you, I dont think its this valve but I'll get this fixed and see....

POST 9 / ORIGINAL POSTEROriginal post

well, the garage changed both fan resistors and the fuel vent valve... Success so far as the tapping noise appears to have stopped so far... Garage also enabled OBC at the same time so now have the outside temp display on the dash too. well pleased...............

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