8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHissing/whining noise when on throttle. Any ideas?
Leading reported evidence
Check engine and trans mounts
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.
Hissing/whining noise when on throttle. Any ideas?
Read full discussion summary
Leading evidence: 'Check engine and trans mounts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check engine and trans mounts' (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.
Hissing/whining noise when on throttle. Any ideas?
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.
8 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
The issue was solved, and things were great until the motor failed in July 2020
A few weeks ago I started noticing a bit of an odd noise while driving. Last weekend, while participating in a three-day driver's ed at Summit Point, the noise became much more prominent.
I don't think I'm very skilled at describing noises, and the best I can do is say that it sounds like a "hissing" noise, with a bit of "whining" layered over the hiss here and there.
The noise comes on with the throttle, but only when I'm moving.
Moving in any gear, add in throttle and the noise appears. The noise immediately goes away when I come off the throttle.
Moving and in neutral, I can rev the motor and no noise. Well, there is noise, but not the one that concerns me. Sitting still in neutral, I can rev the motor and no noise. That makes tracking down the noise a bit of a bitch.
No CEL, and the motor seems to be running fine. The car ran great all weekend at Summit (just needs a more skilled driver).
One thought is exhaust. Earlier today I removed the mufflers and gave things a looking over. The only thing that caught my eye was a bit of a split along the edge of one of the mufflers:
I don't think this goes all the way through, so I don't think it is the problem, but I'm not sure. Anyways, the noise is the same after putting everything back together.
Any ideas? Something internal in the exhaust system? Something else???
Your description sounds like driveline noise to me. Does it occur in all gears or just in o e particular gear?
check trans oil level. Also check engine and trans mounts. If they are worn, gear noise can be transmitted to the cabin. Mine makes some gear whine while accelerating wearing hard.
Did you ever resolve this issue? This is the exact thing happening with my �17 911 GTS. Your description is exactly what I would have written. It is progressively getting worse and has me worried. Thank you!!!
Sorry I never got back here to finish the story. It ended up being a gearbox issue. I think that soon after these posts I started noticing issues getting into second gear. I ended up pulling the gearbox out of the car myself and driving it to Ohio for a rebuild (
BMC&G transmissions
). The issue was solved, and things were great until the motor failed in July 2020
I started to hear a whining noise, like that sound a plane makes, but very subtle. At around 4-5k and up RPM. In any gear but mostly 3-4th. It doesn't happen in neutral. I have noticed sometimes getting into 2nd requires a softer touch. A couple times I thought it was in but it was fully and had som grinding. Never had any 2nd gear pop out though. Wonder if I'm having similar as you...
This is a source reference. Confirm exact model applicability in the original material.
