14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHUh-oh...rattle, clunk noise from engine
Leading reported evidence
Check trunk
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
Check your trunk for a loose tool by the spare tire
Leading evidence: 'Check trunk' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check trunk' (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.
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.
14 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
At idle I am getting a rattling, clunking noise..
I'm thinking this could be BAD but I tool a screw driver and tried to isolate the noise. I don't feel it from the engine block, or lower engine area but it's vary noticeable in the exhaust and mufflers.
For whatever it's worth, car feels fine and just back from a 160 miles drive.
ok... lets hear it...
Just went outside and "banged" around with a hammer, When I tap on the right cat there is a clonngggong rattte
noise coming from it. I guess thats it...
How much are those puppies!
Enough $$ that you may as well just buy aftermarket high flow versions. Check you mileage and age to see if your cats are still covered by that Fed Emissions Warranty on all cars.
Same thing happen to "whitey". He had a horrible rattle and feared something $$$. After we did a few "you rev and drive away and I'll listen" tests, we finally figured out it was a broken bracket that allowed the exhaust to rattle and make the sound.
Called my local Porsche dealer, The service guy is pretty sure its the Cats from what I described to him.
Going to drop it off next week, take a loaner for the day. if its the cats it is covered.
Cool! Brand new cat(s) paid for by Porsche!
I got worried we jinxed ourselves after our conversation at that morning car meet a few weekends ago - remember??
