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Noisey Alternator?

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHNoisey Alternator?

Leading reported evidence

Use stethoscope

Performed · outcome unconfirmed

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 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 used a stethoscope on the case and this seems to be the source.
Original post Read captured discussion
Noisey Alternator?

Frequently discussed work

Check alignment of all the pullies including the a/c pulley

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 the alignment of all the pullies including the a/c pulley with a straightedge
Original post Read captured discussion
Noisey Alternator?

Read full discussion summary

Leading evidence: 'Use stethoscope' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check alignment of all the pullies including the a/c pulley' (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 · 10 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check alignment of all the pullies including the a/c pulley

Suggestion or failed attempt

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 the alignment of all the pullies including the a/c pulley with a straightedge
Original post Read captured discussion
Noisey Alternator?

Recommend not getting a re-man one

Suggestion or failed attempt

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
Recommend not getting a re-man one.
Original post Read captured discussion
Noisey Alternator?

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check alignment of all the pullies including the a/c pulley

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 the alignment of all the pullies including the a/c pulley with a straightedge
Original post Read captured discussion
Noisey Alternator?

Recommend not getting a re-man one

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
Recommend not getting a re-man one.
Original post Read captured discussion
Noisey Alternator?

Use stethoscope

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 used a stethoscope on the case and this seems to be the source.
Original post Read captured discussion
Noisey Alternator?

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.

10 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: 20261026T083035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a rumbling growling like sound coming from my alternator on cold (65f degree) start up. somewhat like a rock crusher. not outrageously noisy but noticeable. It seems to last for a couple of minutes, then go's away. I used a stethoscope on the case and this seems to be the source. Everything functions fine and always has. Warm or hot starts do not produce any unusual noises. Anyone else have this experience? 2004 6 speed with X51 65,000 miles Thanks, Paul

POST 2Original post

Quotes source post: 13371586

It could be the alternator bearing or something loose rattlimg inside. I had this problem on a Bosch reman alternator. You should be able to reproduce the noise if you remove the sepertine belt and hand spin the alternator.

POST 3Original post

Like Ahsai said - Alternator bearing. Time for a new alternator. Recommend not getting a re-man one.

POST 4Original post

Get this new one instead. A little more output, fits well and at a great price! https://www.amazon.com/Bosch-AL0815N...w_wl_ov_dp_1_1

POST 5 / ORIGINAL POSTEROriginal post

Thanks guys the link is not working but purchased new bosch on amazon for $240

POST 6Original post

Quotes source post: 13371984

I just fixed the link now. Is it AL0815N?

POST 7 / ORIGINAL POSTEROriginal post

yes, that is the one

POST 8Original post

While you are in there: 1. Check the idler pulley bearings - a frequent and inexpensive replacement job. 2. Check the alignment of all the pullies including the a/c pulley with a straightedge 3. w/p bearing for play/leaks

POST 9 / ORIGINAL POSTEROriginal post

Will do

POST 10Original post

replaced mine with chinese one on ebay, works great and looks exactly the same

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