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911uk

Whistling noise coming from engine

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWhistling noise coming from engine

Leading reported evidence

Check belt tightness everywhere

Suggestion or failed attempt

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Suggestion

Check belt tightness everywhere.

Original post Read captured discussion
Whistling noise coming from engine
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Leading evidence: 'Check belt tightness everywhere' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check belt tightness everywhere' (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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1 matching discussions · 7 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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Check belt tightness everywhere

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

Check belt tightness everywhere.

Original post Read captured discussion
Whistling noise coming from engine
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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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 911uk: 1 discussions

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Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Having recently purchased a 1993 964, I was extremely happy with life until a few weeks later when I approached a corner doing a few click's faster than the weather would allow, and consequently became another Carrera 2 statistic... Ouch ! Left side damage, front and rear.. All has now been fixed and she is looking better than ever... Only problem I have now is a whistling noise coming from the engine when accelerating. It seems to come in at lower rev's and then dissapears as rev's go higher... Could it be a problem with one of the belts? Any ideas? Migration info. Legacy thread was 11618

POST 2Original post

Can you fatten out your description a little. Whistling like in one of those old C&W records....... a kettle a train? Migration info. Legacy thread was 11622

POST 3Original post

Chris, did you ever get an answer/fix RE your 964? I have the same thing (worse when cold), and when you accelerate it goes, only to come back into earshot when you stop/idle etc. Sounds to me like a rhythmic squeal/pitch - could be the belts???? Anyone??? Dan Migration info. Legacy thread was 38304

POST 4Original post

my drilled airbox whistles if that helps Migration info. Legacy thread was 38307

POST 5Original post

I'm lost? its definitely a high pitched on/off squeal Migration info. Legacy thread was 38310

POST 6Original post

Slipping belt? But then that might get worse the higher the engine speed. Check belt tightness everywhere. Pulley bearing somewhere? Migration info. Legacy thread was 38311

POST 7Original post

I had some whistle noise from the engine when on idle a while ago, mainly when engine's cold. I thnik there's a section in p-car.com about belt tensioner bearing or something. The noise stopped after a while so I never got to find out. Migration info. Legacy thread was 38314

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