Pelican Parts

Vibration/Hum front left with AC on

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4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHVibration/Hum front left with AC on

Leading reported evidence

Check refrigerant and all looks

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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.

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I've checked the refrigerant and all looks to be in order.
Original post Read captured discussion
Vibration/Hum front left with AC on

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Leading evidence: 'Check refrigerant and all looks' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check refrigerant and all looks' (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 · 4 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.

Check refrigerant and all looks

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I've checked the refrigerant and all looks to be in order.
Original post Read captured discussion
Vibration/Hum front left with AC on

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.

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

Pelican Parts: 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a 2001 911/996 Carrera Coupe and recently noticed a vibration/hum coming from the front/left side of the car with the AC on. This only happens with the AC running and the car does not need to be moving to hear/feel the noise/vibration. I've checked the refrigerant and all looks to be in order. Thoughts on what this could be? AC blows cold, heat works as it should and the blower seems strong with no noticeable noises that point me to that. Thanks...

POST 2Original post

Cooling fan bearing noise? What does the other side sound like?

POST 3 / ORIGINAL POSTEROriginal post

Yes, after some additional research, I think it is the cooling fan. The right side sounds fine, only noisy on the left. Thanks for the input... Bill

POST 4Original post

Hi Bill, If you need additional info on the cooling fan replacement or a guide to the process, check out the link below. If you have any additional questions, feel free to post a Comment just below the article and we'll do our best to give you details. Porsche 911 Carrera Radiator and Fan Replacement - 996 (1998-2005) - 997 (2005-2012) - Pelican Parts Technical Article -Dmitry

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