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Son of a..... help diagnose engine noise?

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHSon of a..... help diagnose engine noise?

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Clean bill of health

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Suggestion · Original poster

Clean bill of health from two separate shops within the past 6 months.

Son of a..... help diagnose engine noise?
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Leading evidence: 'Clean bill of health' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean bill of health' (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.

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Repair youtube

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Reported fixes
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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

Porsche 911 Carrera (996) 1999-2005 - Drive belt - DIY Repair - YouTube

Son of a..... help diagnose engine noise?
Frequently discussed actions (2)

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Clean bill of health

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Unsuccessful attempts
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Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster

Clean bill of health from two separate shops within the past 6 months.

Son of a..... help diagnose engine noise?

Repair youtube

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

Porsche 911 Carrera (996) 1999-2005 - Drive belt - DIY Repair - YouTube

Son of a..... help diagnose engine noise?
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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

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Generation: 20261026T183130Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Cliffs notes: 127k 911 C2 New LN engineering IMS New AOS New Clutch/Flywheel Clean bill of health from two separate shops within the past 6 months. Got back from a 1 hr drive yesterday and thought I could hear something similar to a squealing belt. Come out to my car today, cold start, and could hear something like a whining, metal on metal kinda spinning noise (if that makes sense..) coming from the right side of the motor.. Any idea what the hell this would be? Where do I start looking? Tow it to a shop to have them diagnose? Dammit... YouTube

POST 2Original post

Due to your video posting fail, I can only postulate that this is a water pump / idler pulley bearing on the way out. Pull off the serp. belt. Does it stop? Goodie, figure out what's no longer spinning that caused the noise. Does it NOT stop? Call your buddy with the tow truck. Time for another trip to the shop.

POST 3 / ORIGINAL POSTEROriginal post

Why is the video a fail? It's showing up on both my phone and desktop? Water pump was done by the PO about 1 year ago based on receipts.

POST 4Original post

Yeah, it works for you because you're you. It doesn't work for me because I'm not you, and the site says "This video is private."

POST 5 / ORIGINAL POSTEROriginal post

Sorry! Video should be public now..

POST 6Original post

Could be one of the idler/tensioner bearings, remove the air box, remove the belt (draw a diagram first of the belt routing), then spin each of the 3 pulleys by hand to see if you can hear/feel one that's different than the others.

POST 7 / ORIGINAL POSTEROriginal post

Alrighty, I'll try that. Any special tools/tricks/tips to remove the belts on these cars?

POST 8Original post

Porsche 911 Carrera (996) 1999-2005 - Drive belt - DIY Repair - YouTube

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