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how far down the rabbit hole?

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

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YOUR RESEARCHhow far down the rabbit hole?

Leading reported evidence

Replace yep, all wear items

Performed · outcome unconfirmed

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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 performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster

Yep, all wear items have been replaced (aos, clutch, flywheel, ims, all cooling parts, tie rod boots, yada yada) in the past 6mos, itemized list in the thread linked above.

how far down the rabbit hole?
Frequently discussed work

Replace crankshaft sensor

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Discussions that contain suggestions
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Suggestion

It can backfire though, when I did my IMS I didn�t replace the crankshaft sensor, then a few weeks later it failed and almost stranded me twice.

how far down the rabbit hole?
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Leading evidence: 'Replace yep, all wear items' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace crankshaft sensor' (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.

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1 matching discussions · 4 captured posts examined · 0 partial discussions

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Replace crankshaft sensor

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

It can backfire though, when I did my IMS I didn�t replace the crankshaft sensor, then a few weeks later it failed and almost stranded me twice.

how far down the rabbit hole?

Replace o2 sensors would likely improve the cars efficiency

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

For example, with 100k miles, I'm willing to bet that replacing all O2 sensors would likely improve the cars efficiency, but I'm not getting any CEL's and the car runs great.

how far down the rabbit hole?

Replace things

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�d probably say replace things that prevent expensive collateral damage later.

how far down the rabbit hole?

Replace until failure/cel

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

Now just wondering about the lesser bits that most don�t replace until failure/cel.

how far down the rabbit hole?
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 crankshaft sensor

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

It can backfire though, when I did my IMS I didn�t replace the crankshaft sensor, then a few weeks later it failed and almost stranded me twice.

how far down the rabbit hole?

Replace o2 sensors would likely improve the cars efficiency

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

For example, with 100k miles, I'm willing to bet that replacing all O2 sensors would likely improve the cars efficiency, but I'm not getting any CEL's and the car runs great.

how far down the rabbit hole?

Replace things

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�d probably say replace things that prevent expensive collateral damage later.

how far down the rabbit hole?

Replace until failure/cel

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

Now just wondering about the lesser bits that most don�t replace until failure/cel.

how far down the rabbit hole?

Replace yep, all wear items

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

Yep, all wear items have been replaced (aos, clutch, flywheel, ims, all cooling parts, tie rod boots, yada yada) in the past 6mos, itemized list in the thread linked above.

how far down the rabbit hole?
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.

4 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: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

One of the best discoveries I've made thus far as a new owner of a 996 is how easy they are to work on, which is great given my car is 15 years old, has a 100k on it and came with some but not complete records. Over the past 6 months I've worked to replace all the typical wear items these cars need (save a forthcoming brake job), more on that here if you care. Motor mounts will improve the car as will new suspension, but what about those that don't necessarily improve me enjoying of the car? For example, with 100k miles, I'm willing to bet that replacing all O2 sensors would likely improve the cars efficiency, but I'm not getting any CEL's and the car runs great. Is this is a situation where you cast aside preventative maintenance until there's an issue: when the car tells you it needs those with a CEL? At what point does PM becoming needless spending?

POST 2Original post

I�d probably say replace things that prevent expensive collateral damage later. IMS being the classic one, an $800 LN bearing is cheap insurance against a $12k engine blow up. That and things that are really worn or end of life, water pump, belt etc It can backfire though, when I did my IMS I didn�t replace the crankshaft sensor, then a few weeks later it failed and almost stranded me twice. It was $90 to replace and about an hour or two. So now I have AAA premium

POST 3Original post

Things like O2 sensors can wait. Lots of other stuff you can do. Coils and plugs make a difference if they are getting old. The big stuff like the IMS, AOS, rear seal can be done in combination with doing the clutch.

POST 4 / ORIGINAL POSTEROriginal post

Yep, all wear items have been replaced (aos, clutch, flywheel, ims, all cooling parts, tie rod boots, yada yada) in the past 6mos, itemized list in the thread linked above. Now just wondering about the lesser bits that most don�t replace until failure/cel. Appreciate the input from those who have owned lots longer than I.

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