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Pelican Parts

transmission whine

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

Discussion summary

YOUR RESEARCHtransmission whine

Leading reported evidence

Replace pinion bearings

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

I had the pinion bearings replaced in the gearbox, and all is good.

transmission whine
Frequently discussed work

Check fluid level

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 · Original poster

and is there a way to check the fluid level?

transmission whine
Read full discussion summary

Leading evidence: 'Replace pinion bearings' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'bearing in the trans' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check fluid level' (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 · 9 captured posts examined · 0 partial discussions

Compare 4 other evidence results

bearing in the trans

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

Best way to tell a bad bearing is to take out the drain plug stick your finger in there toward the rear of the car and if you get a bunch (alot) of metal goo from the magnet, there's likely a bad bearing in the trans.

transmission whine

Check fluid level

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 · Original poster

and is there a way to check the fluid level?

transmission whine

Check magnet &

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

OP should mount proper size tires & check the magnet & replace the diff fluid with new Porsche oil.

transmission whine

Replace diff fluid

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

OP should mount proper size tires & check the magnet & replace the diff fluid with new Porsche oil.

transmission whine
Frequently discussed actions (5)

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

Check fluid level

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 · Original poster

and is there a way to check the fluid level?

transmission whine

Check magnet &

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

OP should mount proper size tires & check the magnet & replace the diff fluid with new Porsche oil.

transmission whine

Replace diff fluid

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

OP should mount proper size tires & check the magnet & replace the diff fluid with new Porsche oil.

transmission whine

Replace pinion bearings

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

I had the pinion bearings replaced in the gearbox, and all is good.

transmission whine

Use swepco

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 · Original poster

unknown...do you think it is worth using SWEPCO?

transmission whine
Reported and suspected causes (1)

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

bearing in the trans

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Best way to tell a bad bearing is to take out the drain plug stick your finger in there toward the rear of the car and if you get a bunch (alot) of metal goo from the magnet, there's likely a bad bearing in the trans.

transmission whine
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.

9 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: 20261026T133652Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

-------------------------------------------------------------------------------- Has anyone expereinced a pretty significant transmission noise from there 996. When I drive my car 50 mph + I hear a transmission whine while I am on the gas. Lifting off the gas the sound goes right away and re-applying throttle it comes right back and it is always present above 50mph. Anypone experience this and possible have a solution to reduce or diagnose a bigger problem? thank you

POST 4 / ORIGINAL POSTEROriginal post

unknown...do you think it is worth using SWEPCO? and is there a way to check the fluid level? thank you

POST 5Original post

No, changing to Swepco will do nothing. http://forums.pelicanparts.com/porsche-911-technical-forum/678550-996-transmission-whine.html I reiterate, stop driving your car and get it to a professional ASAP!!! Regards, Matt Monson Guard Transmission llc Guard Transmission |

POST 6 / ORIGINAL POSTEROriginal post

Little update, I finally got the car into my mechanic (a dedicated P-car guy) and he is not convinced that it is the pinion bearing. He did notice that the rear tires were 2 sizes too big Ugly situation, they were on the car when I bought it from the dealer and he stated that that may have caused some tranny damage. We are swapping out the tires and I am keeping my fingers crossed that maybe that is all that was needed? thanks for the submissions

POST 7Original post

The tire size would only hurt the trans if the RR and LR tires were different sizes. Best way to tell a bad bearing is to take out the drain plug stick your finger in there toward the rear of the car and if you get a bunch (alot) of metal goo from the magnet, there's likely a bad bearing in the trans.

POST 8Original post

You are describing the exact same symptoms that my '99 exhibited. I had the pinion bearings replaced in the gearbox, and all is good. The only noise I hear now is the wonderful PSE.

POST 9Original post

Quotes source post: 6776930

If his car is a C4, which his signature indicates, it will if the diameter is different from the front. OP should mount proper size tires & check the magnet & replace the diff fluid with new Porsche oil.

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