fullymatted.
Back to search
Rennlist

Vibration under acceleration

Add to repair workspace
Open repair workspace
Original source
10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHVibration under acceleration

Leading reported evidence

Fill glass of water half full

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

Fill a glass of water half full and set it on the steering wheel while filming .....that will give a visual representation of what you are feeling ...

Vibration under acceleration
Read full discussion summary

Leading evidence: 'Fill glass of water half full' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill glass of water half full' (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 · 10 captured posts examined · 0 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.

Fill glass of water half full

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

Fill a glass of water half full and set it on the steering wheel while filming .....that will give a visual representation of what you are feeling ...

Vibration under acceleration
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.

10 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: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I'm feeling a vibration under acceleration. It only happens at higher speeds, 70+ MPH, and it is only present under acceleration. As soon as I lift the vibration is gone. I'm scratching my head on this one.

POST 2Original post

No experience with this issue on a Porsche but on another vehicle it was a CV joint going bad.

POST 4Original post

Any RPM dependence? If yes, I would guess flywheel. CV joint sounds like a possibility.

POST 6 / ORIGINAL POSTEROriginal post

Quotes source posts: 20152480, 20152558, 20152568, 20152818

Hmmm, this is a possibility. They're all quite within 5 years, probably 3 years. However if it was a tire, wouldn't it just vibrate all the time, rather than coming and going with throttle application? Interesting. I'll have to try a 4th and 5th gear experiment. Sure! Teaser: it will show a speedometer and me saying, "it's vibrating now... it's not vibrating now..."

POST 7Original post

Do you feel the vibration in the steering wheel or seat of the pants? Makes a difference...

POST 8Original post

Fill a glass of water half full and set it on the steering wheel while filming .....that will give a visual representation of what you are feeling ...

POST 9 / ORIGINAL POSTEROriginal post

It's drivetrain, not the steering wheel. Apologies for not making that clear earlier. It's definitely in the back of the car.

POST 10Original post

Quotes source post: 20154853

Well. thats a tuff one. So many possibilities. simple stuff first... Here is a start of where I'd look... 1) engine mouts 2) Trans mount 3) Internal muffler problems/ or its mounts 4) internal cat problems 5)exhaust heat sheilds 6)exhaust pipes touching something/not secured/mounted properly 7)normally, I'd say tires but you say no vib when off throttle but still at speed so that wouldn't be tires as tire vibs are speed related not engine acceleration related. If a tire is bad it will vibrate at speed regardless of accelerating or coasting.... So, just to be clear, when accelerating to 70 mph, at 70+ a vibration starts...? @ 75+ If You fully push in the clutch while keeping rpms the same with clutch in, will vib stop..?

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