5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCoolant leak! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported or suspected cause
water pump
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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.
Coolant leak! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'water pump' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'water pump' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check coolant expansion tank in the trunk' (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
When I replaced the heater core I examined all the hoses to forestall additional leaks.
Coolant leak! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check coolant expansion tank in the trunk
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
Also check the coolant expansion tank in the trunk.
Coolant leak! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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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.
Coolant leak! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use search function
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.
Coolant leak! - 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.
5 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I was driving home from work this evening and started hearing a graunching noise and then the coolant light started flashing. As I was determined to get home and the temperature gauge was reading fine I decided to drive the remaining 10 miles home. When I parked up on my drive fluid started streaming out from in front of the rear left wheel. The boot seems to be dry so I have a feeling that the water pump may have gone.
Has anyone else experienced this?
Never. Ever.
/S
A million times. Happened to me. No biggy.
Use the search function for the forum. It's been covered so many times... SO MANY TIMES... that you may not receive a prompt response.
Use the search feature. Als... that noise yoou heard??? I wouldn't be driving the car. Sounds like your water pump failed... or you broke your belt. Take a peek.
Welcome to the club.
There are plenty of places where coolant can leak from; coolant cap, hoses, pump, heater core... BUT the only one that will graunch is the pump. There are things that will graunch, but will not leak coolant.
If nothing obvious presented by looking under the car, I'd remove the engine access panel behind the seats and see if the water pump is wonky.
Also check the coolant expansion tank in the trunk. They are notorious for developing "spider cracks" that only start to leak as the coolant gets hot and the coolant system pressure builds up. When cold the "spider cracks" are almost impossible to detect.
Make sure you remove the truck carpeting completely and if you have a false raised trunk under the carpet make sure you remove that too. You need to get down to the metal trunk bottom. You might find (as I did yrs ago) small pools of coolant sitting there, ready to slosh around and find gaps to drip onto your garage floor.
Long story short, 10 years ago I replaced my then 15 year old coolant tank and water pump once I discovered pooled coolant in the trunk and spots on my garage floor.
My 986 had almost identical symptoms. It was the water pump. I replaced the pump and thermostat and had no more leaking -- until the heater core started leaking. When I replaced the heater core I examined all the hoses to forestall additional leaks. So far, so good.
This is a source reference. Confirm exact model applicability in the original material.
