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Strong Gas Smells 03 996 c2

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

Discussion summary

YOUR RESEARCHStrong Gas Smells 03 996 c2

Reported or suspected cause

rubber o-ring in the cap

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

I had a strong gas smell and it was the rubber O-ring in the cap that was not seated properly.

Original post Read captured discussion
Strong Gas Smells 03 996 c2
Frequently discussed work

Check gas cap

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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

I second checking the gas cap.

Original post Read captured discussion
Strong Gas Smells 03 996 c2
Read full discussion summary

Leading evidence: 'rubber o-ring in the cap' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'rubber o-ring in the cap' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check gas cap' (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

Check gas cap

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

I second checking the gas cap.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Check requirement

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

As Idaho has an emissions check requirement, it had to get fixed.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Inspect of the

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

I have not done much investigation yet other than inspecting all of the under carriage fuel lines that were easily accessible.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Smoke-test )

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

The ultimate solution turned out to be a couple of o-rings in some hard pipes of the evaporator system in the RF fender well that took a lot of time to find (did not show in a smoke test).

Original post Read captured discussion
Strong Gas Smells 03 996 c2
Frequently discussed actions (4)

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

Check gas 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

I second checking the gas cap.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Check requirement

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

As Idaho has an emissions check requirement, it had to get fixed.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Inspect of the

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

I have not done much investigation yet other than inspecting all of the under carriage fuel lines that were easily accessible.

Original post Read captured discussion
Strong Gas Smells 03 996 c2

Smoke-test )

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 ultimate solution turned out to be a couple of o-rings in some hard pipes of the evaporator system in the RF fender well that took a lot of time to find (did not show in a smoke test).

Original post Read captured discussion
Strong Gas Smells 03 996 c2
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.

rubber o-ring in the cap

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

I had a strong gas smell and it was the rubber O-ring in the cap that was not seated properly.

Original post Read captured discussion
Strong Gas Smells 03 996 c2
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 · 0 adjusted by outcome qualification.

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

Generation: 20261027T150039Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Just as title states. Just picked up my 996 in November. Its been in the garage since I acquired it. Once it started getting cold I could really begin to notice the gas smells in the garage. I have not done much investigation yet other than inspecting all of the under carriage fuel lines that were easily accessible. Any pointers or problematic areas to look for first? thanks all!

POST 2Original post

Gas tank cap, and associated spaghetti hoses of the evaporative circuit.

POST 3Original post

Nipples off the sending unit have been known to crack.

POST 4Original post

I second checking the gas cap. I had a strong gas smell and it was the rubber O-ring in the cap that was not seated properly. Simple fix.

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 17905913

I just checked mine. I do see dry rotting and cracking on seal. I�ll order another.

POST 6Original post

When I first got my C4S, there was an issue with the emission controls, and the check engine light was on. As Idaho has an emissions check requirement, it had to get fixed. The tech started with easy stuff like the gas cap and fittings then into more expensive/invasive. One interesting find was when they took off the cover over the sending unit and fuel pump, there was about 1/4" of fuel sloshing around! Not good, not good at all. They replaced the gaskets and the fuel pump and a couple of other fittings, but I sure dodged a bullet there. Anyway, as I was driving it, there were no fumes that I smelled, but have no idea why not. Anyway, worth taking a look. The ultimate solution turned out to be a couple of o-rings in some hard pipes of the evaporator system in the RF fender well that took a lot of time to find (did not show in a smoke test). This required a lot of time to get to them, and very little in parts. Good luck! I hope you find the issue.

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