3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHcoolant overflow from expansion reservoir - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Replace drivebelt among other things
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
Also had it undergo a 90K major service soon after and that changed the drivebelt among other things
coolant overflow from expansion reservoir - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Replace drivebelt among other things' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check around' (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
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
Around 90K the coolant pump broke which I had replaced on my own (with help from the board of course).
coolant overflow from expansion reservoir - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check around
Suggestion or failed attempt
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 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
Checked around with little hope but obviously no shop open on a sunday evening.
coolant overflow from expansion reservoir - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check temp and it showed around 200
Suggestion or failed attempt
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 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
Put the key back in ignition to check temp and it showed around 200.
coolant overflow from expansion reservoir - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello all,
I took my 2001 boxster on a drive down from San Francisco to Santa Barbara this weekend and had problems.
First, as I pulled into the driveway in SB, I saw coolant spilling off the side, opened the trunk and found it oozing out from around the cap perhaps and out through overflow tube. Put the key back in ignition to check temp and it showed around 200. No CEL or any other signs. It didnt look like it had been draining all the way along. probably happened just when i stopped.
I let it cool and next day was a sunday and couldnt take it to the shop for a checkup. Got some coolant and topped it up. Seemed like a about a gallon of coolant had drained off. Started up, no bad signs ran well (temp still about 200) and so I decided to carry on and bother about the issue once I got back home to SF.
Then again when I took an exit for gas after about 200 miles, I noticed the check engine light come up and soon stopped and noticed the coolant spilling off again. Let it cool for a good couple hours. Checked around with little hope but obviously no shop open on a sunday evening. Topped up the coolant again and then was able to drive again and reached home (another 250 miles) without further events. The car ran smooth as ever and temp still sticking around 200 (apart from check engine light that stayed on - but wasnt blinking)
Car hadnt been showing any other trouble signs before this as well. It does give out some good smoke (which appears white) at startup from the exhaust and kinda smells like gas (I had looked that up and it seemed like that was a regular thing with boxster's flat engine so didnt bother).
It is currently doing 94K miles. Around 90K the coolant pump broke which I had replaced on my own (with help from the board of course). Also had it undergo a 90K major service soon after and that changed the drivebelt among other things
Any ideas on what could be the problem? I will take it to the shop for the check engine light anyway but thought a self-assessment was in order before that, as usual.
Thanks in anticipation
Hakim
Sounds like you just need a new Coolant Cap.
http://www.e-partssales.com/miva/merchant.mvc?Screen=PROD&Store_Code=P&Product_Code=99610644703&Category_Code=986Cooling
Code: 99610644703
Price: $15.20
I have a very similar problem. I didn't know what was causing it but every so often I have to dump a little coolant into the car. I noticed it is on the ground infront of the rear passenger wheel. One time I saw a very slight bit on the drivers side infront of the rear wheel. Figured if I saw that again I'd get it looked at but never have.
If this is the consensus that a new cap is necessary I'll order it too
-Matt
This is a source reference. Confirm exact model applicability in the original material.
