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Planet-9

2001 Boxster Base 2.7 rough idle after start- cold or warm

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Original source
7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2001 Boxster Base 2.7 rough idle after start- cold or warm

Leading reported evidence

Replace by myself had

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

Recent oil change by myself had clean filter- no metal or plastic in filter, and oil looked like typical dirty oil, no particles.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm
Read full discussion summary

Leading evidence: 'Replace by myself had' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace by myself had' (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 · 7 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Replace engine in-situ

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 believe the tensioner can be replaced engine in-situ, so that might be a good course of action.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm

Replace reportedly done every 7k miles

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

Oil changes reportedly done every 7k miles.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm
Frequently discussed actions (3)

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

Replace by myself had

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

Recent oil change by myself had clean filter- no metal or plastic in filter, and oil looked like typical dirty oil, no particles.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm

Replace engine in-situ

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 believe the tensioner can be replaced engine in-situ, so that might be a good course of action.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm

Replace reportedly done every 7k miles

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

Oil changes reportedly done every 7k miles.

Original post Read captured discussion
2001 Boxster Base 2.7 rough idle after start- cold or warm
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.

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

  • Planet-9: 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: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi everyone, I recently purchased a 2001 boxster base 2.7 after selling my 2005 last year. This 2001 has 106700 miles currently and supposedly had the IMS /RMS/Clutch done at 80k miles. Oil changes reportedly done every 7k miles. Recent oil change by myself had clean filter- no metal or plastic in filter, and oil looked like typical dirty oil, no particles. Other maintenance done to car includes alternator , water pump, idler pulley and belt, coil overs and other small things. I’ve performed the expansion tank service, spark plugs and coils, spark plug tubes, filters, and other small things. Car has original starter, chain tensioners, variocam pads, and timing chain itself. CURRENT ISSUE- I wanted to get all your thoughts on this video. The boxster does this once every 5-10 starts and I finally got it on video. You can tell it is running rough and almost sounds like a bearing of some sort or chain noise and then stops after 5 seconds and idles fine and runs fine. It only ever makes the noise at startup and is very infrequent but kind of concerning. Warm or cold, it will do this- video was taken with engine at operating temp. Only ideas I have are a starter not disengaging, or timing chain tensioners. Before I start throwing parts at it I wanted to get all your thoughts!! thanks in advance! Rob

POST 2Original post

Hard to diagnose this way but to my ear that sounded like a chain tensioner.

POST 3Original post

The timing chain tensioner might be bleeding down when the engine is stopped and isn't doing its job until it sees oil pressure. I believe there might have been a TIB or something about that, but I can't swear to it, or what year(s) it applied to. I believe the tensioner can be replaced engine in-situ, so that might be a good course of action.

POST 4Original post

Would the timing chain tensioner bleed down that fast? I was starting the engine about every 10 seconds to get this video and catch the one time it did it every once in awhile.

POST 5Original post

Given the mileage and the replacement parameters it's a good place to begin investigations.

POST 7Original post

Nope, sold it 2 months ago when I bought a 981 . The car never did it again, very strange. I would assume it was timing chain tensioners though, past 90k miles they all need this done.

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