16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFinding coolant leak driving me bonkers!
Reported or suspected cause
burp valve was missing the two sealing o-rings
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
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 report identifying 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.
Reported cause
I had a similar leak driving me nuts and later come to find out it was the burp valve was missing the two sealing o-rings.
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
Leading evidence: 'burp valve was missing the two sealing o-rings' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'burp valve was missing the two sealing o-rings' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean area up' (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 report identifying 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.
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.
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
Mind you recently replaced the the coolant tank you may want to check it at the burp valve.
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean area up
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
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
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak.
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.
16 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Pictures taken after car sitting for a week and not started, so coolant is not being blown around by wind. System pressurized with pressure tester. Rear end being jacked up may affect where drips show. At first, thought leaking at AOS where coolant hose connects, but then spotted second drip. Second picture shows same drip as on right of first picture, Can't see coolant travelling from AOS to second spot. You can see the area around the second spot is wet. Coolant expansion tank replaced 14 months ago. Is there any thing with coolant higher than the AOS except the expansion tank? When focused on AOS, I was planning on replacing AOS and weighing whether to drop engine or knuckle bust. Now think I might need to drop just to figure out. Thinking the time to take out coolant tank and AOS not much less than dropping. Drove 50 miles today, coolant loss from max to min marks on expansion tank.
Drip (upper left) on AOS
Above driver's side axle shaft
Yeah it�s tough one. But it�s best if you isolate the source of the leak I supposed. That way you go in there with more precision as to what to strike. But then on the other hand if you were going to replace the AOS, then you might as well drop the motor.
It�s not that bad if you have the space and equipment to DIY. Dropping motor should only be about 30-45 min.
Mind you recently replaced the the coolant tank you may want to check it at the burp valve. I had a similar leak driving me nuts and later come to find out it was the burp valve was missing the two sealing o-rings. Once I ordered and installed them, it secured the small leak I had. Just a thought, since it looks like my tank was manufacture on a Friday or Monday. LOL, since quality control was not at its finest.
Prior owner replaced at an indie. Price of part on receipt was $25 more than what Pelican charges for genuine Porsche if that tell us anything. More I look at it, I can't see the leak coming from the tank. Underneath tank is dry and dusty. AOS is at the back of engine and top of AOS (location of drip) is higher than tank. Can't see how a leak in tank or connected hose can travel there. There is an indie in Pensacola run by a British guy (sounds just like the guy in Ford v, Ferrari). I'll see if I can pay him to take a peek and give me his opinion.
He makes a good point by asking this question. The aftermarket coolant expansion tanks are well-known to leak. Therefore, make sure you have a genuine OEM tank ordered from Porsche parts. Also, make sure you have the most recent coolant expansion cap because the earlier ones leak. Fortunately, Porsche realized there were problems with the earlier run of caps and manufactured a newer version. Make sure it has the .04 in the part #.
Sometime when you can't see a leak location, I clean the area up with brake clean which quickly evaporates and then pressurize the coolant tank and use baby powder and squeeze to the area you suspect a leak. your leak source will show up
On way home from work stopped at grocery store. Puddle of coolant when came back to car. Been focused on AOS. Planning on bypassing AOS and UAOS install in the future. Could it be possibly coming from the coolant bleeder valve? Can't spot where hose from bleeder valve ends. Pics would be appreciated.
Can someone tell me the name or better yet the part number of the hose that attaches to the nipple to the side of the bleeder valve and above the sensor labeled 2. Pelican part rep couldn't find it.
It's the actual coolant nipple on the AOS. I thought is was just at the hose clamp when it was just a drip. Pic below shows a squirt wetting additional areas. Guessing large crack in nipple wasn't far away. I'm going to bypass the AOS by splicing line from behind serpentine belt to hose going into 3-way before expansion tank. Will get UAOS and install once my l have time to drop the engine.
At least you stuck with it and tracked it down. Now you know. I've started using the dye in for finding leaks in the generators I work on and it helps.
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