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Planet-9

Engine rattle on cold start

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

Discussion summary

YOUR RESEARCHEngine rattle on cold start

Leading reported evidence

Check date of the thread

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

Guy's please check the date of the thread.

Original post Read captured discussion
Engine rattle on cold start
Read full discussion summary

Leading evidence: 'Check date of the thread' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check date of the thread' (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 · 6 captured posts examined · 1 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.

Check date of the thread

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

Guy's please check the date of the thread.

Original post Read captured discussion
Engine rattle on cold start
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.

  • Planet-9: 1 discussions

0 evidence records excluded for query context · 1 excluded by outcome qualification · 0 adjusted by outcome qualification.

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

Generation: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I have a 06' CS w/14,250 miles. ( 99 percent road miles). Bought car new. Problem: Lately I have been hearing an engine rattle on cold start after car sits 2-3 days. Car also idles rough for 20-30 seconds. I just started car after a 7 day park and heard a louder engine noise that sounds like lifter bleed-down and there was at least 1 cyl. DEAD. The ck/eng. lite was on. I gently reved the eng. as to try and clean it out to no avail. I turned the eng. off and re-started it and the eng. was smooth and the lite was off. I drove 25 miles and it felt fine. On returning home I checked the OBD11 codes and found cyls. 1,4,6, to have a misfire code. Also a 300 code for random multi. misfire. I called porsche and they will pick my car up in the AM and tow it 100 miles to the nearest dealer, In Roanoke, Va. Anyone had this happen to them and any knowledge on such? Nice to have a warrenty!! Thanx, Old Bob PS: My first post here

POST 2Original post

After not driving mine for a few days I definitely get a little of the ugly sounding noises, and maybe 5-10 seconds of a slightly rough idle, but then all is grand. It's pretty much been like this from day one and appears to be quite common. The error codes you are receiving plus the worse symptoms are a good reason for the dealer to have a look. Let us know what turns up.

POST 3Original post

Did you ever find out what the problem was? My 08 CS started to have this exact symptom.

POST 6Original post

And the number of posts the person posting the message have - in this case - 1. It appears he came, dropped his problem and left. Somehow I believe a response from him is unlikely.

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