20 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWater Pump no warning!!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Replace timing belt
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 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
On other cars I usually replace the water pump when I replace the timing belt.
Water Pump no warning!!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Replace timing belt' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace timing belt' (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 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
On other cars I usually replace the water pump when I replace the timing belt.
Water Pump no warning!!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use porsche part
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.
Water Pump no warning!!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use tapatalk
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.
Water Pump no warning!!! - 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.
20 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: 20261027T171335Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Just curious how many of you out there had a water pump to go without leaking or any signs. Car has about 146K. Every other car I have owned before normally started leaking before complete failure.
I saw smoke while slowing to make a turn and then squeaky pulley noise. I pulled over before temp gauge started to move. Unfortunately, with new position and hours, I have not had a chance to confirm, but pretty sure unless one of the hoses was cut.
Mine made a noise like brush / debris caught between the brake rotor and the dust shield, but Not correlated with wheel speed. Noise stopped before I got to a place whwre I could investigate.
The next night, in the rain, dash temp light flashed to indicate "low coolant," so I diverted to a place could get some distilled water as a fller. Before I could get there, got the loud belt squeal then thumping of thrown belt. I knew the problem so got a tow home rather than risk overheating. On inpection, impeller was Destroyed.
WOW. Yeah, I almost can't wait to get that pump off to see the damage. Its really bad when you can't find the time to jack the car up on stands and take a peak!!!
Mine didn't either. It literally weeped and caked. I just happened to see some pink looking residue one day while doing something else. Fortunately caught it before failure.
Minor leak - I never noticed the leak but it sounded like plastic clanking around after the blade broke.
Took it to mechanic he pointed it out right away.
An indirect but related event was my discovery of these plastic pieces in the coolant circuit of my oil cooler. I only looked because one of the real experts on this site was adamant these should be replaced or at very least flushed. So likely from an impeller in a state of premature failure.
Those little pieces are Satan himself!! Flush forwards and backwards until it runs clear, then do it again. Those little bits are the cause of cracked heads.
j.fro,
Is your "flush forwards and backwards" referring to the cooler or the engine? I just bought a new cooler but still considering how best to flush the engine - it's currently sitting on my shop cart getting ready to jump back in the car.
BL
Mine failed pretty abruptly. Never had any sign of any leak until it happened. Luckily, it must have been very close to home, as I didn't notice anything until I pulled into the garage and saw a huge cloud of smoke from the engine compartment vent. Looked under the car, saw coolant dripping pretty rapidly. The roller on my pump was very loose and wobbly.
I believe that one (99610702559) supercedes 99610702557, which is listed oem for the 986 BoxsterS 3.2 liter AND the 997 series 3.6 liter.
But forum member TRK had suggested in another post that the 997 oil cooler is larger (thus presumedly more effective) and fits the 986. I believe he must be referring to part 99710702500, which is listed for the 997 series 3.8 liter cars. I am just trying to get some confirmation before ordering the 997xxx part. If I am going to replace the oil cooler anyway, might as well upgrade at the same time, but want to make sure I am ordering the right "upgrade" part number.
On other cars I usually replace the water pump when I replace the timing belt. I am planning to replace my 05 987 belt soon should I do the water pump. It has 50k miles and I do not know if it has been replaced.
