8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPeanut butter on the floor... intermix?
Leading reported evidence
Replace cap
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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1
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Performed · outcome unconfirmed · Original poster
Two years ago, it was pressure tested and appeared fine, so I changed the cap.
Leading evidence: 'Replace cap' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'cold test' (1 discussions; 0 report identifying it and 1 suggest it). 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.
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Suspected cause · Original poster
I was told it was probably cracked for a while, but held up under the pressure test before because it was likely a cold test.
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Discussions that contain suggestions
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Suggestion · Original poster
anything to check for a simple fix before dropping the motor?
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Suggestion · Original poster
Last summer the tank cracked and I had it replaced, hoping that would solve the problem.
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.
8 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: 20261026T033439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I pulled my '02 C2 out of six months of storage this morning. Runs like champ, but found lots of coolant 'spots' on the drop sheets and some "peanut butter" in one spot under the 4-5-6 bank (see photo). I've read the threads on intermix from a cracked head, but am wondering if there's anything else to consider before jumping to that conclusion?
For the past few years, I've noticed a slow coolant leak and topped up the expansion tank annually. Two years ago, it was pressure tested and appeared fine, so I changed the cap.
Last summer the tank cracked and I had it replaced, hoping that would solve the problem. I was told it was probably cracked for a while, but held up under the pressure test before because it was likely a cold test.
When I put the car into storage last fall, I noticed the coolant level was down slightly again. Figuring there's nothing to do at this point, I put it away, and pulled it out this spring.
I don't see any oil in the coolant tank, and there's no coolant intermix on the oil dipstick (will be doing oil change soon). The car hasn't had any history of leaking oil and it doesn't appear that I've lost any noticeable amount since my oil change last Spring. I get the normal occaisional smoke on startup, but nothing consistant.
So... anything to check for a simple fix before dropping the motor? Any imminent danger to the motor by driving the car?
Thanks!
Joe
That may just be from oil and condensation mixiing. But still you really need to get the engine checked out to see what it leaking where. See the August Excellence for a good write up on water pump issues.
Water pump has to be suspect. Also, with 6 months of storage there's the possibility rodents might have been at the car, at its hoses.
Regardless I'd not drive the car because the cooling system is suspect. If the system can't hold pressure the engine can suffer from localized overheating and you could lose the engine.
Best get the car to a qualified shop for professional diagnosis and repair.
Sincerely,
Macster.
To bring this to a close...
Mouse damage is covered by my insurance, so I contacted my provider. I wanted to take it to the dealer, but they insisted that they had to pick it up and take it to their private compound for inspection. Nothing was found so the insurer towed it to a restoration specialist. The specialist found nothing, charged me for two hours labour and towed it to the dealer. Dealer did a pressure test... water pump. Parts arrive on Wednesday. My guess is that the coolant leaked onto the floor, the sweet smell/taste attracted the mice who then tracked it all over the place...
