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Replaced PCV/Oil Separator but sill have oil cap suction

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Old 09-20-2021, 03:58 PM
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Originally Posted by Curtis Mueller
Roldie78, Did you ever get an answer to this? I can barely pull the oil cap off with car running and PCV just replaced under Audi bulletin.
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This is the D4 forum... You have an S6.
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Old 06-16-2022, 07:22 PM
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i have a 2012 audi a6 3.0t and have done a replacement pcv/oil separator and today i have had my coolant boil out of my reservoir and coolant seams to pool up around the pcv underneath the supercharger i opened it back up to look at the pcv and it seals properly and im pretty sure the job was done right i have taken the supercharger off for the 3rd time and cant seem to figure out what the issue is and today the oil level decreased can anyone give me a idea on what the issue could be it would be greatly appreciated maybe i got a faulty part and when i take my oil cap off while the engine is running it still pulls heavy vacuum
Old 06-17-2022, 02:43 AM
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Originally Posted by vickram17
i have a 2012 audi a6 3.0t and have done a replacement pcv/oil separator and today i have had my coolant boil out of my reservoir and coolant seams to pool up around the pcv underneath the supercharger i opened it back up to look at the pcv and it seals properly and im pretty sure the job was done right i have taken the supercharger off for the 3rd time and cant seem to figure out what the issue is and today the oil level decreased can anyone give me a idea on what the issue could be it would be greatly appreciated maybe i got a faulty part and when i take my oil cap off while the engine is running it still pulls heavy vacuum
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Wrong forum. This is the D4 forum... You have an A6.
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Old 02-09-2023, 07:12 PM
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Just following up...
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Normal crankcase vacuum, 105K miles -> https://tinyurl.com/2s7ma482
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Unmute the video.
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Old 02-09-2023, 09:35 PM
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Old 02-09-2023, 09:38 PM
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Not to worry; nothing untoward there...
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Old 11-01-2023, 02:27 PM
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Originally Posted by vickram17
i have a 2012 audi a6 3.0t and have done a replacement pcv/oil separator and today i have had my coolant boil out of my reservoir and coolant seams to pool up around the pcv underneath the supercharger i opened it back up to look at the pcv and it seals properly and im pretty sure the job was done right i have taken the supercharger off for the 3rd time and cant seem to figure out what the issue is and today the oil level decreased can anyone give me a idea on what the issue could be it would be greatly appreciated maybe i got a faulty part and when i take my oil cap off while the engine is running it still pulls heavy vacuum
I have the same Issue, did you resolve this?
Old 11-01-2023, 04:59 PM
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Originally Posted by vr6piloot
I have the same Issue, did you resolve this?
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D4? 4.0T? What issue?
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Old 11-01-2023, 10:35 PM
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Originally Posted by A8L_New_England
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D4? 4.0T? What issue?
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as described what I quoted, engine 3.0 tfsi, pdc replaced, without result, still the sizzling sound when accelerating and suction at the oilcap. If someone has an idea what it could be, highly appreciated
Old 11-02-2023, 03:36 AM
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You quoted an A6, and this is the wrong forum for that car.
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