21 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
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YOUR RESEARCHDid you ever wonder....
Leading reported evidence
Replace 80k
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
80K to 100K miles later the replacement AOS failed and it was replaced.
Leading evidence: 'Replace 80k' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 80k' (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.
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
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
In the case of my car, I had the car towed (flat bedded) to the dealer and the AOS was replaced with no real after effects.
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
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Suggestion
The risk is real and based on my experience and what I've gathered about AOS I always advise someone if the AOS is suspected to avoid running the engine and get it flat bedded to a qualified shop and get the diagnosis made and the car fixed.
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
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Suggestion
In fact the SM told me of another Boxster owner who had called not too many days before me about his car and it was going through the same symptoms and the SM advised him to avoid using the car.
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
The risk is real and based on my experience and what I've gathered about AOS I always advise someone if the AOS is suspected to avoid running the engine and get it flat bedded to a qualified shop and get the diagnosis made and the car fixed.
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
In fact the SM told me of another Boxster owner who had called not too many days before me about his car and it was going through the same symptoms and the SM advised him to avoid using the car.
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.
21 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Why even mention the TRACK? Was that to emphasize that it was the way it was being driven that caused the A/O separator to fail? Under normal road spirited driving condition, are you saying that we get some indication that the A/O separator has gone and nothing untoward happens? Or if the AOS goes wouldn't the Check engine light come on. Oh you had your eyes fully on the track and didn't notice the CE light. I get it now. I can't say that I am sorry for your mishap. I can say that I am sorry that you tracked it without the car being in tip top condition. Hey that's only IMHO. You were too busy to notice a CE light on the dash.
Wow, sorry to see that. I am confused however, how did the A/O separator failure cause the piston rod to break? Or the intermediate shaft for that matter? Perhaps it was the other way around?
To the OP, would like to read more about this. The AOS/OVS failure was so extreme as to cause oil to hydraulic the engine? Thought they usually smoked really bad for awhile? Was there any warning?
BTW its a shame that the factory rods are so pathetic that they break instead of bend. I could see if it bent/twisted whatever, but total break? WTF?
Very sorry for what happened but I learn volumes from these incidents. Please post some more pics and details. Im not ******* you at all for tracking your car, thats your business.
Like Hurdi asked, I hope this would not be the norm for some 6000RPM street driving. I think we all do that from time to time.
Good call Halick, sure looks like it (inverted). Amazing what high RPM failure can do.
Is that what Hurdi did? It looked to me like he decided to blather about how OP is at fault for his engine grenading, which puts Hurdi about 10 feet on the far side of d!ckish...
I'd keep that IMS behind the seat as a "negotiator..."
Is the IMS bearing trashed, just out of curiousity?
That might be the first X51 grenade pr0n I've ever witnessed...
I'm sure.
When I called the Porsche dealer SM about my 02 Boxster when it was suffering from -- not yet professionally diagnosed -- a failed AOS the SM strongly urged me to not drive the car any. Based on the symptoms he said it sounded like a failed AOS.
He said there is a risk the engine can hydrolock as the AOS subjects the engine to a lot of low pressure which can route a lot of oil vapor to the engine intake and into the cylinders, particularly one maybe two cylinders.
In fact the SM told me of another Boxster owner who had called not too many days before me about his car and it was going through the same symptoms and the SM advised him to avoid using the car. But because the parts would have to be ordered the owner refused and said he bought the car to drive and he was going to drive it.
Well, he drove it and the engine suffered a lock up.
In the case of my car, I had the car towed (flat bedded) to the dealer and the AOS was replaced with no real after effects. 80K to 100K miles later the replacement AOS failed and it was replaced.
With this 2nd failure as soon as it became clear to me the AOS had failed -- smoking from cold start that was heavy and continuous -- I had the car towed to the dealer and had the AOS replaced.
In the case of the 996 the threat to the engine from a failed/failing AOS is possibly from two directions: oil as I covered above but also coolant
IIRC the 996 AOS is fed some coolant. If the failure involves a coolant leak this can route coolant to the engine and into the cylinders and chambers where it can cause a lock up of the engine almost certainly ruining the engine.
The risk is real and based on my experience and what I've gathered about AOS I always advise someone if the AOS is suspected to avoid running the engine and get it flat bedded to a qualified shop and get the diagnosis made and the car fixed.
Is the coolant circulated through the 996 AOS for heating or cooling purposes? If the former, at least for those of us in climates where it's not necessary, I wonder if bypassing the coolant side of the AOS is a possibiliy...
Post from Renntech: "Yes, 996 AOS is partially (TOP portion) heated by cooling water." - and another post later in the same thread mentions "to keep it from freezing."
Anyone who is smarter than I am have an opinion? If this is true, bypassing this coolant loop seems like a potentially good thing for warm-climate 996s...
I don't give a **** about Hurlygirlyman.
I put the details in because that's what happened.
This is another opportunity for an upgrade.
It will be back for next season's club racing.
I'll let you all know what's up when the decisions are made.
This is a source reference. Confirm exact model applicability in the original material.
