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YOUR RESEARCHWhining sound coming from '99 996 - New to 996 Ownership
Leading reported evidence
Replace ims (ln) and clutch
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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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Performed · outcome unconfirmed · Original poster
The IMS (LN) and clutch were replaced at the same time as well.
Whining sound coming from '99 996 - New to 996 Ownership
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Leading evidence: 'Replace ims (ln) and clutch' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check belt and pulleys' (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
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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
The water pump was replaced in 2016 and the car hasn't been driven too much between then and now, just under 60k on the engine.
Whining sound coming from '99 996 - New to 996 Ownership
Replace water pump, ims and clutch)
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
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
Everything is stock (except for replaced water pump, IMS and clutch).
Whining sound coming from '99 996 - New to 996 Ownership
Check belt and pulleys
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 · Original poster
I am planning to take the airbox out to check the belt and pulleys, but wanted to get some help before that and before taking it in to the shop.
Whining sound coming from '99 996 - New to 996 Ownership
Check power steering fluid level
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
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.
Whining sound coming from '99 996 - New to 996 Ownership
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261027T182539Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello - I'm new to 996 ownership (first P Car purchased two weeks ago, '99 996 cab Carrera) and I have since driven it down from Oregon to California and have noticed a couple of noises that I don't believe are regular or either I'm not driving it correctly.
The first is a high whining sort of sound as if something is struggling to turn (maybe serpentine belt, tension pulley, etc.) and happens when releasing clutch in first gear and beginning to drive. I have also researched that it may be a hydraulic pump, power steering, alternator, or water pump issue. The water pump was replaced in 2016 and the car hasn't been driven too much between then and now, just under 60k on the engine. The IMS (LN) and clutch were replaced at the same time as well. (Audio One and Two File)
The second is a slight rattle sound that I have yet to find where it is coming from. (Audio One File)
Any help is appreciated. I am planning to take the airbox out to check the belt and pulleys, but wanted to get some help before that and before taking it in to the shop.
Thanks!
Check power steering fluid level. Good idea to remove the airbox and check all the pulleys, alternator, AC pump and so on. A long screw driver can work like a mechanics stethoscope.
Well the belt is an easy one because you can do one thing to diagnose two: Take the belt off and feel all of your pulleys and bearings to see if they have any play, turn freely, all that good stuff. If they do, then turn the car on and see if it's the engine independent of the belt.
There's a chance, since you said there's a correlation between use of the clutch and the noise, it could be a throwout bearing squealing.
I'd recommend you start to eliminate common things like these that make squealing noises so that you can begin to isolate your issue. Good luck!
If it�s only after cold start up, it might be the secondary air pump (mine�s been whining for years). Usually shuts off after a minute or so.
Throwout bearing has a distinct noise, one that can be figured out by simply pushing the clutch in, then release.
Good luck and keep us posted!
Oh, and enjoy the drive, OR to CA is one of the better drives (granted you avoid the 5).
Another high pitched whine that is misdiagnosed is an a poorly grounded after market stereo. I was convinced that it was something in my transmission until this simple sentence allayed my fears.
Best of luck.
Thanks for the note - she's got her original stereo so that's unfortunately not the issue, but good to know for the future. I'm taking it in today for some other inspection work so will post what I find out.
Unfortunately, where the car was located, I couldn't get proper PPI before purchase (the risk I worked into the purchase price). I knew the seller, and spoke to the previous owner before him, so I took a chance. Lucky I did because I took it in for an oil change and general inspection yesterday and there doesn't seem to be anything wrong. Other than some old parts that need replacing (fluids, tires, intake plenums, suggested other minor plastic/rubber parts), the shop said the car was in great condition. The car runs great so leads me to believe it's just the natural age of the car as a whole and my "getting used to a different clutch" driving style as it happened less when the mechanics drove it out the garage. It may also be the collective parts that need replacing but have yet to affect the performance of the car.
Thanks to everyone who chimed in regarding this noise. It may be more of a natural engine noise that I'm not used to, but will continue to keep an eye on it. In case someone else is having similar issues and need more examples to the audio files I posted, I dug and found someone else with a similar 'issue' with a video found here:
You Tube
This is a source reference. Confirm exact model applicability in the original material.
