17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHEngine vibration
Leading reported evidence
Adjust seat angle and height
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
You can minimize it by adjusting seat angle and height.
Leading evidence: 'Adjust seat angle and height' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust seat angle and height' (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
I'll try cleaning the MAF this spring and putting some new plugs.
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.
17 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: 20261026T072535Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So sitting at a stop light, I noticed the passenger seat (empty) shaking wildly....WTF?
So I do some different rpm tests and at idle (which is very stable on my tach) the whole car is experiencing a lot of vibration. Goes away at higher RPM.
I'm 99% sure I have a motor mount on it's way out....but I thought I would throw it up on here just in case anyone recognizes it as a symptom to a different problem...
None right? Just motor mount?
please.....
sean
Mine also shakes... But nothing crazy.
I'll try cleaning the MAF this spring and putting some new plugs.
Rough idling is usually electrical. Main thing to check is the MAF and coil packs/plugs.
LOL
Well maybe I should say that my car didn't USE to shake like this. At all. It was smooth as silk before. I never noticed the headrest shake.
hmmmm, maybe all of your 996's (and mine) have an IMS that's about to implode!!!
look under the engine on the rear corners where the Cats are for 2 big nuts holding the engine cross-member onto the body. If you see any purple stains on those nuts you either have a blown mount or varicose veins
