2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAnother Noise Topic 991/996 Turbo 2001
Leading reported evidence
Clean good measure
Performed · outcome unconfirmed
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 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 took out the MAF and cleaned for good measure, but wondered whether something on the induction side needs looking at, was thinking of pulling out the air filter etc, incase suction is impaired for e.g.
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
1 noise is familiar, passenger side exhaust rattle, louder when cold and reduces when warm, indications for internal exhaust baffle etc, but seen some suggestions for adjusting the rod on the dump valve etc so I'll try this.
Leading evidence: 'Clean good measure' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust rod' (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
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
1 noise is familiar, passenger side exhaust rattle, louder when cold and reduces when warm, indications for internal exhaust baffle etc, but seen some suggestions for adjusting the rod on the dump valve etc so I'll try this.
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
Mine does, I have disconnected but it makes no difference to the noise I'm hearing, just wondered if it should run all the time.
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
rev's/idle changes due to cooling fan load, and you can hear the fan running, but I have this noise and idle change constantly.
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
rev's/idle changes due to cooling fan load, and you can hear the fan running, but I have this noise and idle change constantly.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Adjust rod
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
1 noise is familiar, passenger side exhaust rattle, louder when cold and reduces when warm, indications for internal exhaust baffle etc, but seen some suggestions for adjusting the rod on the dump valve etc so I'll try this.
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 took out the MAF and cleaned for good measure, but wondered whether something on the induction side needs looking at, was thinking of pulling out the air filter etc, incase suction is impaired for e.g.
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.
2 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.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi read through a few noise topics for any similarities to mine, but couldn't match.
I've a 2001 996 turbo, 43kmls, FPSH, great condition, and no major concerns, 2 noises developed.
1 noise is familiar, passenger side exhaust rattle, louder when cold and reduces when warm, indications for internal exhaust baffle etc, but seen some suggestions for adjusting the rod on the dump valve etc so I'll try this.
The 2nd noise has just developed. To date the engine has been really smooth and no issues, however for no apparent reason, if I recall sitting in traffic, the idle became slightly rough and a noise surface.
To distinguish the change in idle performance, for e.g. the passenger seat was solid before, but now shakes gently, and for sure generally in the cabin it's not a smooth at idle as it was.
The noise, which is just increased back ground noise(i.e. fan running) doesn't change at all if you rev, it just stays constant.
A perfect way to describe, would be to use the example of a radiator fan coming on, i.e. rev's/idle changes due to cooling fan load, and you can hear the fan running, but I have this noise and idle change constantly.
I didn't take note before, but should the fan in the boot lid run constantly ? Mine does, I have disconnected but it makes no difference to the noise I'm hearing, just wondered if it should run all the time.
It's strange trying to source the noise, with the engine lid up, nothing obvious is apparent, or able to be pin pointed you don't hear it any louder for e.g.
I'll do some more snooping around shortly, but wondered if anyone else experienced this etc. I took out the MAF and cleaned for good measure, but wondered whether something on the induction side needs looking at, was thinking of pulling out the air filter etc, incase suction is impaired for e.g. but seeing as the noise doesn't increase with engine rev's this may be a wasteof time.
The runs fine and no major change, just at idle the noise described above.
Anycase look forward to any thoughts on this and looking forward to becoming a regular contibutor.
1st noise should be simple to fix, although can happy as the parts start to warm up
Fan came come on regularly depending on the operating temp of the car at the time
Worth keeping an eye or ear on the 2nd noise
This is a source reference. Confirm exact model applicability in the original material.
