13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCoolant Dump
Reported or suspected cause
$20 cap
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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Discussions that report identifying a cause
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.
Reported cause
My 986 started dumping coolant between laps at Autocross, and the culprit was the $20 cap.
Leading evidence: '$20 cap' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is '$20 cap' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Disconnect leg go' (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.
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1
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Performed · outcome unconfirmed
This is the same problem I am having - expansion tank was replaced but not this line -
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Suggestion · Original poster
It looks as though this is some sort of thermal switch, but where would the disconnected leg go to?
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.
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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.
13 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: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Soooooooooooooooooooo...
Sitting, waiting for a group to begin a PCA drive Saturday I was a victim of a major coolant dump... arg!!!
After getting it home and replicating it I discovered a fitting that had a broken leg to it that was dumping coolant only after the engine attained high temperature. It looks as though this is some sort of thermal switch, but where would the disconnected leg go to? Also I cannot find this fitting in PET or anywhere else after searching a few hours.
Anyone out there know what this is and can you help me with a part number? It looks like a fairly simple fix.
Might be the fitting for the hose that goes to the AOS. If so, I think it is called a "joining socket" and maybe p/n 996 106 226 51 (or 52). Look that one up and see if it matches.
I don't know the fitting, but I know that someone else here will help out.
Are you CERTAIN it was that fitting? My 986 started dumping coolant between laps at Autocross, and the culprit was the $20 cap.
It's definitely that fitting where the break is and it is a pressurized flow after a certain temperature is reached. I am also wondering what if i just bridge the fitting and leave the hose as it is...
rockhouse66, I've read about that socket and I don't think it is that. This is a 3 leg fitting with the main flow hose ~5/8" and the "now broken" leg ~1/4".
The smaller hose goes to either the AOS or the oil/coolant heat exchanger. I can't recall right now. In any case, I don't think it's a good idea to modify anything.
Yes it goes on the bottom pointing o the rear of the car. It looks like there was a previous Jose that was larger/longer that incorporated the down hose that splits.
This is a source reference. Confirm exact model applicability in the original material.
