Pelican Parts

2001 Carrera 3.4 Coolant and AOS?

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Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2001 Carrera 3.4 Coolant and AOS?

Leading reported evidence

Replace cooler

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
This was done and other head was fine, but with repair done about 10,000 miles ago and having also replaced the cooler but NOT the AOS, I HAVE ONLY PUT ON A FEW MILES (1500) and I now have something I just noticed in the coolant reservoir that is not good.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Frequently discussed work

Check air oil separator

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
A manometer is the tool for checking the AOS .
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Read full discussion summary

Leading evidence: 'Replace cooler' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check air oil separator' (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

Compare 3 other evidence results

Check air oil separator

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
A manometer is the tool for checking the AOS .
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Repair done about 10,000 miles ago and having also

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 · Original poster
This was done and other head was fine, but with repair done about 10,000 miles ago and having also replaced the cooler but NOT the AOS, I HAVE ONLY PUT ON A FEW MILES (1500) and I now have something I just noticed in the coolant reservoir that is not good.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Repair of the head

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 · Original poster
Its been awhile and lots going on but I picked up an older 996 3.4 a couple years ago which has about 100,000 miles and already had a head fixed due to OH and mixing and sent to the guru in the states to do his repair of the head after a confirmed pressure test.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Frequently discussed actions (4)

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

Check air oil separator

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
A manometer is the tool for checking the AOS .
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Repair done about 10,000 miles ago and having also

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
This was done and other head was fine, but with repair done about 10,000 miles ago and having also replaced the cooler but NOT the AOS, I HAVE ONLY PUT ON A FEW MILES (1500) and I now have something I just noticed in the coolant reservoir that is not good.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Repair of the head

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
Its been awhile and lots going on but I picked up an older 996 3.4 a couple years ago which has about 100,000 miles and already had a head fixed due to OH and mixing and sent to the guru in the states to do his repair of the head after a confirmed pressure test.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

Replace cooler

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
This was done and other head was fine, but with repair done about 10,000 miles ago and having also replaced the cooler but NOT the AOS, I HAVE ONLY PUT ON A FEW MILES (1500) and I now have something I just noticed in the coolant reservoir that is not good.
Original post Read captured discussion
2001 Carrera 3.4 Coolant and AOS?

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: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All, Its been awhile and lots going on but I picked up an older 996 3.4 a couple years ago which has about 100,000 miles and already had a head fixed due to OH and mixing and sent to the guru in the states to do his repair of the head after a confirmed pressure test. This was done and other head was fine, but with repair done about 10,000 miles ago and having also replaced the cooler but NOT the AOS, I HAVE ONLY PUT ON A FEW MILES (1500) and I now have something I just noticed in the coolant reservoir that is not good. Whats your thoughts? Is there any chance of the AOS leaking between as I know this generation had the oil line to the unit.

POST 2Original post

A manometer is the tool for checking the AOS . Do a Google search for " Porsche manometer readings " or similar and you will finds tons of data . All Porsche DIYers should own a manometer and they can be found for 50 bucks or so . You will have to modify an oil filler cap .

POST 3Original post

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POST 4Original post

If you have an oil and coolant mix, it’s not from the AOS. Oil in the AOS goes into the intake and belches blue smoke out if the tailpipe. Intermixes are either cracked heads or a failure in the heat exchanger on top of the engine allowing the two liquids to mix.

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