6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHLOW / ROUGH IDLE.
Reported or suspected cause
silencer box
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.
Reported cause
Fault was traced to silencer box with loose baffle.
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
PS : I also found that when pulling away the revs would drop then bounce back up making clean pull-aways difficult, again all cured with a replacement MAF.
Leading evidence: 'silencer box' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'silencer box' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean pull-aways difficult, again all' (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 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
I had this on my 98MY & it was a faulty MAF...quite normal to have to replace on of these on this age of car - cost me £350 fitted from a specialist.
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
PS : I also found that when pulling away the revs would drop then bounce back up making clean pull-aways difficult, again all cured with a replacement MAF.
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
I had this on my 98MY & it was a faulty MAF...quite normal to have to replace on of these on this age of car - cost me £350 fitted from a specialist.
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
So, was the silencer replaced, or can the baffle be 'tightened'?
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean pull-aways difficult, again all
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
PS : I also found that when pulling away the revs would drop then bounce back up making clean pull-aways difficult, again all cured with a replacement MAF.
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.
Porsche Club GB: 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My 98 996 started to do the same thing a couple of years ago. Tickover fell from about 650 to stutter but was only restored to a steady 800 with the a/c on. Fault was traced to silencer box with loose baffle.
So, was the silencer replaced, or can the baffle be 'tightened'? The only reason I ask is that my car is more rough on idle with the A/C switched off - so I just leave it on!
Andrew, sorry to report but they can't get into the innards of these SS boxes. I bought 2 almost new from Tech9 (they have a shed full of them!). Not only were the replacements the newer type with the flex-joint but they make a much nicer noise. not quite PSE, but hey, who needs plod looking at you all the time?
Hi
Get the MAF sensor checked. MY98's have a rough idle - its perfectly normal.
This was addressed in the 99MY I believe but bot 100%.
I had this on my 98MY & it was a faulty MAF...quite normal to have to replace on of these on this age of car - cost me £350 fitted from a specialist. The bulk of that price is the cost of the part as its a very simple job to fit.
Julian.
PS : I also found that when pulling away the revs would drop then bounce back up making clean pull-aways difficult, again all cured with a replacement MAF.
I have a mid 1999 build car, and so it could well fit this diagnosis. It might also explain my 5800-6000 rpm flat spot which has been considerably alleviated after a service, but which I suspect is still there (but it might be pyschological now). This was reported, but, inevitably became a NFF (as the diagnostics did not report a fault). It could be time for a second opinion!
Thanks for that (I know I did not start this thread, but that's the point of forums, isn't it?)
This is a source reference. Confirm exact model applicability in the original material.
