11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWhat's wrong with my water pump?
Leading reported evidence
Replace unnecessarily
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Leading evidence: 'Replace unnecessarily' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace unnecessarily' (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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Suggestion · Original poster
Is there is known issue with the 996 tensioner tightening over time?
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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Suggestion · Original poster
I am not aware of any tensioner that will tighten over time, they usually looses tension.
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.
11 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.
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Generation: 20261027T020439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
This is the 2nd replacement water pump that is "leaking". Don't see any coolant on the floor, just see a lot of white residue all around the water pump and looks like they are coming out from the pulley shaft, just like the previous one.
Have anyone had repeated water pump failures? Am I doing something wrong with the coolant, bleeding process?
Here is a picture of the waterpump with all the white residue around it.
I don't find any coolant drops on the garage floor, only rarely I smell coolant after some hard drive when I come to a stop.
Could it be possible that I overfilled the coolant reservoir and there are so much pressure build up that it is coming out of the water pump bearing shaft?
Not gaskets, it is very obvious that it was came out of the bearing shaft area just like the previous one that I replaced. The factory water pump's bearing failed, so there was no question as the pulley wiggled and made noise. But the subsequent replacements are both leaking from the pump shaft bearing area. At least edvidence of leak, not a running leak.
Porsche will not authorize a warranty replacement unless there are
wet
drops of coolant visible on the housing. They claim the dry residue is normal.
I can no longer remove identifying information from Adobe pdf files so I don't want to post it publicly but I can send it to you privately. Send me your email address.
Belt oo tight? How is that possible? Is there is known issue with the 996 tensioner tightening over time? I am not aware of any tensioner that will tighten over time, they usually looses tension.
This is a source reference. Confirm exact model applicability in the original material.
