fullymatted.
Back to search
PistonHeads

"Whining sound" below 2,000 revs. 997 C2S - Page 1 - 911/Carrera GT - PistonHeads UK

Add to repair workspace
Open repair workspace
Original source
4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH"Whining sound" below 2,000 revs. 997 C2S - Page 1 - 911/Carrera GT - PistonHeads UK

Leading reported evidence

Use (although i haven't had chance

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 · Original poster

Since I've returned home I haven't heard the noise again, which suggests it only occurs when the car is hot/had extended use (although I haven't had chance to test this on a mid-range journey yet).

"Whining sound" below 2,000 revs. 997 C2S - Page 1 - 911/Carrera GT - PistonHeads UK
Read full discussion summary

Leading evidence: 'Use (although i haven't had chance' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use (although i haven't had chance' (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 · 4 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.

Use (although i haven't had chance

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

Since I've returned home I haven't heard the noise again, which suggests it only occurs when the car is hot/had extended use (although I haven't had chance to test this on a mid-range journey yet).

"Whining sound" below 2,000 revs. 997 C2S - Page 1 - 911/Carrera GT - PistonHeads UK
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.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 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: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I've just returned from a holiday in the Highlands and drove there in my 997 C2S. On the way up there I noticed a strange whining sound after we'd been driving for around 6 hours. We stopped for a break shortly afterwards and when I got back in the car it seemed to have stopped so tried to think nothing more about it. Anyway, on the way home after about 4 hours of driving I noticed this noise reappeared. This time I was able to diagnose it better to see when it occurred. I came to the conclusion that it occurred when revs dipped below 2,000 and happens in any gear. My first worry was it is a gearbox thing but the fact that it's happening in all gears made me think this might not be the case (although I'm not a mechanic so could be completely wrong). Since I've returned home I haven't heard the noise again, which suggests it only occurs when the car is hot/had extended use (although I haven't had chance to test this on a mid-range journey yet). The noise isn't incredibly loud but is noticeable and is something new that I haven't heard before. I'm a sufferer of Porsche paranoia so am always listening for unusual sounds. Does anyone have any theories on what this might be? As a footnote, I'm sadly considering getting rid of my car. The paranoia is spoiling the experience to be honest and after having had it for just over a year I feel like if I get rid of it now I might dodge the bullet of what seems like an inevitable big bill (although admittedly this may never come). I've probably spent over 2k on various niggles so far and am really worried about some of the dreaded engine issues. This latest thing could be the nail in the coffin!

POST 2Original post

Just a thought but next time it happens just turn off the aircon and see if the whine stops. Mine has an odd sort of groan from time to time and we traced it to the aircon compressor. My indie says they do make a noise sometimes but its working fine

POST 3Original post

Mine made a similar noise which ended up being an aux. belt tensioner bearing, £450 later all was well.... I am sadly with you regards to the sale of your car, never have I been so stressed about owning a car and potential problems, in 18 months and 6000 miles; 6x coil pack, gear lever linkage, aux. belt, clutch, Full Engine REBUILD, aircon condenser, electric seat switch, DME sensor, 5 liter of top up oil, rear seat base leather delaminating...... Fantastic engineering on a 36,000 mile car! Glad to have washed my hands with it, happily driving an M3 now, I never worry about over revving the damn thing, I don't care if I stand on the brakes hard to damage the PCCBs, and I never stress when it goes in for a service. Back to enjoy driving the car rather than leaving it under the car cover in the garage! I will in time be tempted in the new Cayman GTS in the near future though...

POST 4 / ORIGINAL POSTEROriginal post

L200animal said: Just a thought but next time it happens just turn off the aircon and see if the whine stops. Mine has an odd sort of groan from time to time and we traced it to the aircon compressor. My indie says they do make a noise sometimes but its working fine Interesting… will try that. Thank you! scarebus said: Mine made a similar noise which ended up being an aux. belt tensioner bearing, £450 later all was well.... I am sadly with you regards to the sale of your car, never have I been so stressed about owning a car and potential problems, in 18 months and 6000 miles; 6x coil pack, gear lever linkage, aux. belt, clutch, Full Engine REBUILD, aircon condenser, electric seat switch, DME sensor, 5 liter of top up oil, rear seat base leather delaminating...... Fantastic engineering on a 36,000 mile car! Glad to have washed my hands with it, happily driving an M3 now, I never worry about over revving the damn thing, I don't care if I stand on the brakes hard to damage the PCCBs, and I never stress when it goes in for a service. Back to enjoy driving the car rather than leaving it under the car cover in the garage! Thank you... will bear that in mind if it's not the aircon. Wow, so you have been stung =( In 12 months or so I've had aircon condensers, aircon o-ring, clutch, flywheel & slave cylinder, gear lever linkage and Plug/coil pack heat shields. Some of those things being more costly than others! I am also thinking of heading back to BMW.

This is a source reference. Confirm exact model applicability in the original material.