6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHExhaust or Silencer noisy at start for 10 mins then clears
Reported or suspected cause
exhaust mount
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
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Discussions that suspect a cause
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Suspected cause
If so its more than likely a exhaust mount from manifold to catalytic convertor..secured by 3 M8 nuts...more than likely corroded have a look..
Exhaust or Silencer noisy at start for 10 mins then clears
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Leading evidence: 'exhaust mount' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'exhaust mount' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace gasket did the problem get' (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.
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
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Suggestion · Original poster
- once you replaced the gasket did the problem get resolved?
Exhaust or Silencer noisy at start for 10 mins then clears
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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.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Exacty what mine did during the summer, very noisy on start-up but after 5 or 10 mins the noise was back to normal.
Hi,
My 996 1990 model has just today started to sound on every start up as though there is a hole in the exaust pipe. It sounds terrible for about 10 mins then gradually clears up. CHecked for holes and couldnt see any, however it seems also within that 10 mins only the left side exhaust expells fumes. It seems like there is a mechnism that is jammed and then releases like a choke in the old cars.
Any ideas before I go into Porsche dealership?
THANKS
Hi,
If its 1990 its not a 996...i presume you mean 1999 ?
If so its more than likely a exhaust mount from manifold to catalytic convertor..secured by 3 M8 nuts...more than likely corroded have a look..
Mike
Exacty what mine did during the summer, very noisy on start-up but after 5 or 10 mins the noise was back to normal.
The gasket between the cat and manifold will almost defintely have gone.
Be very, very wary of where you take it to get it done as it seems that all the various bolts on the exhaust system will be rusted to buggery and will snap off leading to potentially very expensive situation. There are various threads on here about it - including mine!
sportsandclassic -
Apologise my mistake...its a 2000 (w) reg 996 model carrera 4
Is this a problem you have come cross before and have fixed? If so you are quoating no more than £200?
Also do you have a diagram or a picture to show me wher to look? I am a complete novie im afraid, so a guide or direction as to where to look via dagram would be greatly appreciated.
pontypool
- once you replaced the gasket did the problem get resolved?
Should I take it to Porsche garage for diagnosis or a local garage with a Porsche diagnosis machine be able to pick that up?
many thanks
Hi,
Not got any pictures but if you can at all get underneath it and look at where the exhaust first meets the engine cylinder heads then follow it back about a foot or so and there will be a flange with 3 studs/nuts in it...the first section of exhaust system meets the manifold here...check that section on both sides of the car.
Yes we have never charged more than £200 plus vat for both sides to be repaired.
Thanks
Mike
This is a source reference. Confirm exact model applicability in the original material.
