11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNoisy Exhaust on Start Up
Leading reported evidence
Replace my exhaust has taken six months
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Suggestion
IIRC it takes awhile for the exhasut to settle to their final note and even then there are changes, my exhaust has taken six months to get to the note it's at now
Leading evidence: 'Replace my exhaust has taken six months' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace my exhaust has taken six months' (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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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.
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Suggestion
My does EXACTLY the same 8) I always start mine for a minute or two before setting off, when I first turn the key and for 30 seconds after it sounds awesome but when the engine starts to warm up a little it calms down
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.
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Suggestion · Original poster
I am normally pretty good at diagnosis using message boards etc but this has got me stumped.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Replace my exhaust has taken six months
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
IIRC it takes awhile for the exhasut to settle to their final note and even then there are changes, my exhaust has taken six months to get to the note it's at now
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
My does EXACTLY the same 8) I always start mine for a minute or two before setting off, when I first turn the key and for 30 seconds after it sounds awesome but when the engine starts to warm up a little it calms down
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.
11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 2001 996 Carrera 4 and the sports exhaust has started making a great racket on start up. I then drive for about a mile or so and it starts to settle down to the normal note. If I start it up again after a short space of time there is no further problem. However if I leave it for half an hour or so and start up it makes the racket and again settles down after a mile again. I am normally pretty good at diagnosis using message boards etc but this has got me stumped. Is it a major problem apart from startling the neighbours first thing.
What do you mean by racket :?:
I think they all rattle a bit when cold, I know those I've experienced do, and as the engine temp increases slightly it goes.
Sounds like yours could be more substantial though and has only just started happening :?:
It's not actually a rattle. The sound of the exhaust is much louder and a little irregular, which as I say settles down to the regular note after a mile or so. It's a little worrying as it has just started, but I'm puzzled as to why it "regularises" relatively quickly.
Mine does that too, and I noticed a 997 C2S on youtube with pse did the same thing on cold start up. I wouldn't worry about it.
I think it sounds cool 8)
Is it something to do with the cold idle speed?, being at 1k rather than 800 or so. Try keeping the revs at 1k after it's warmed up and see if the resonance causes vibration through the exhaust resulting in that noise. IIRC it takes awhile for the exhasut to settle to their final note and even then there are changes, my exhaust has taken six months to get to the note it's at now
The baffles had gone in my PSE when I took delivery of it and the good old OPC whacked a new system on for me
My does EXACTLY the same 8) I always start mine for a minute or two before setting off, when I first turn the key and for 30 seconds after it sounds awesome but when the engine starts to warm up a little it calms down
I then drive off on my journey :bye:
I wouldn't worry :lol:
