7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHbroke vacuum line to air pump - advice needed
Leading reported evidence
Replace lines, check valve, vacuum reservoir and change over valve
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Suggestion
I just spent 3 hrs (worked slowly) replacing all the lines, check valve, vacuum reservoir and change over valve for air injection.
Leading evidence: 'Replace lines, check valve, vacuum reservoir and change over valve' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace lines, check valve, vacuum reservoir and change over valve' (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
I had a minor idle flutter from a vacuum leak and since the parts where reasonably priced i figured i would just replace all of it.
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Suggestion
The best solution is to replace ALL of the vacuum lines in the system with silicone tubing.
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Suggestion · Original poster
The 996 or any Porsche for that matter, if we could get all the irritating little plastic bits replaced with steel or aluminum quality components.
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.
7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So I was changing out the alternator, which of course the alternator bushing is completely seized and I started moving things out of the way and accidentally snapped the very old, most likely now 19 year old vacuum line. I believe it is one going to the air pump. Perhaps item #28 or #30 in the diagram below.
I was thinking since it's just vacuum air line to get a universal one to replace it so I don't have to go pay porsche tax. Has anyone does this before? curious about success and also dimensions of tubing.
It is the black shiny hard plastic line this guy is pointing to in a different post
The best solution is to replace ALL of the vacuum lines in the system with silicone tubing. The rest of the OEM lines are bound to fail and trying to track down leaks is a real PITA.
Totally agree. I looked at one funny and it started to crack. Did anyone do a diy? I'm trying to triage the situation first - later on I'll probably find the time to redo all the lines.
The 996 or any Porsche for that matter, if we could get all the irritating little plastic bits replaced with steel or aluminum quality components.
I just spent 3 hrs (worked slowly) replacing all the lines, check valve, vacuum reservoir and change over valve for air injection. I had a minor idle flutter from a vacuum leak and since the parts where reasonably priced i figured i would just replace all of it.
Take out both center crossover intakes (have to take the rear intake to access the intake resonance flap acutator) , alternator (the vacuum reservoir is behind it in the middle of engine) and you'll have access to entire vacuum line system. All the vacuum lines where so brittle that they snapped apart when i was taking them apart.
I used this diagram which was very helpful.
The hardest part was taking out and reinstalling the alternator.
