Pelican Parts

Cylinder burning oil

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCylinder burning oil

Leading reported evidence

Test visual inspection

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 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
#3 cylinder failed compression test - visual inspection after pulling spark plug does not show any scoring.
Original post Read captured discussion
Cylinder burning oil

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Leading evidence: 'Test visual inspection' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test visual inspection' (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 · 8 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Test visual inspection

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
#3 cylinder failed compression test - visual inspection after pulling spark plug does not show any scoring.
Original post Read captured discussion
Cylinder burning oil

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.

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

Pelican Parts: 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: 20261027T033922Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I think I know the answer, but I'll ask anyway... 1999 Carrera Cabriolet, 71,000 miles, burning oil in #3 cylinder. Often smokes (blue smoke), sometimes heavily, at startup. #3 cylinder failed compression test - visual inspection after pulling spark plug does not show any scoring. Dealer suggests it is either a bad valve guide, worn oil ring, or cracked cylinder head. 3 questions: Any thoughts on these possibilities? Are there other possible causes? How urgent is it to pull the engine to confirm a diagnosis and repair? Thanks in advance!

POST 2 / ORIGINAL POSTEROriginal post

It looks like a bad oil ring - any labor estimates on a ring job for an M96 3.7L?

POST 3Original post

Quotes source post: 8738986

Upwards of $12K to do a proper rebuild, more if you really want to do it right.

POST 4 / ORIGINAL POSTEROriginal post

Well, since I can buy 6 x 1999 911's for that price I think I'll hold off...

POST 5Original post

Quotes source post: 8739319

That should read $12K, not $120K.

POST 6Original post

Quotes source post: 8724566

Dealer dosen't seem to be familar with weak points of this engine. Don't let them disassemble it, R&R only.

POST 7Original post

Quotes source post: 8738986

1999 comes with 3.4L Most likely cause of oil ring failure is worn cylinder & a ring job will not fix that. If you allow that dealer to disassemble that engine you will regret it.

POST 8 / ORIGINAL POSTEROriginal post

Yes, sorry, not sure why I typed 3.7L, it is, of course, a 3.4L - and thanks for the advice WRT the dealer!

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