Is my Oil/Air Separator not working properly? Video Included
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should i be taking off certain parts to see if there is oil seepage in the engine? if you guys can describe any visual for parts that i should take off from the engine bay to explore if the oil/separator has failed it would be appreciated.
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When you watch vudeo, you can ckearly tell high pressure build up in engine. The sound is almost like cork popping off champagne bottle.
Too much pressure. Normal pressure you will only feel it but wont hear it when opening the oil cap. Watch video when he unscrews cap, very apparent.
Too much pressure. Normal pressure you will only feel it but wont hear it when opening the oil cap. Watch video when he unscrews cap, very apparent.
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^^^I understand what you’re saying but that’s hardly an universal test. Mine makes a bit of noise coming off. Is it that much no, is it completely silent no. There isn’t universal agreement on what is nomal vaccuum vs abnormal - well unless you’re using a specific tool to measure.
I’m not trying to sound argumentative I just want to make the point that if owners feel a little suction pulling off the cap when toppin off the oil, it doesn’t mean the AOS is going to blow up. With other symptoms in addition to some perceived extra vaccuum the AOS is one culprit to check. Thats my take away.
The point being what you hear is hardly a red flag unless we have a similar video as to what is normal, or similarly had someone actually pulling on it in person that’s knows “normal” vs “abnormal”.
Can someone post a video of the “normal” sound without the cork pop?
Can several people simply go pop their cap under idle and listen for a little suction pop?
Without other symptoms or checking say the diaphram for damage, or having a pro measure with a tool it’s simply not as simple as a sound unless we have something to compare it too. Again i’m interested in helping people out not just trying to be obstinate.
If anything what this thread and others have offered is that the AOS malfunction is fairly nebulous until it’s really not and something is really wrong throwing codes and the engine runs rough. Short of looking in the lines and opening up the diaphram cap I don’t know one would know. It is something that is not expensive to replace and does commonly fail and can contribute to gunking all kinds of stuff up. You’d think it would be on some kind of maintenance schedule to check and replace. This to me is really the most concerning.
I’m performing maintenance over the next few weeks, plugs, valve cleaning, and simply looking for items like this to check for premature malfunction. I am considering replacing the part to see if i notice a suction difference, or in the least opening it up and seeing what the condition of the diaphram thingy is. From other threads the damage and tears are pretty obvious.
That’s what sucks. It’s not unlike carbon buildup on the valves. Do you have it or don’t? When do you worry about it? How do you tell without looking? Why isn’t valve cleaning just standards maintenance?
I’m not trying to sound argumentative I just want to make the point that if owners feel a little suction pulling off the cap when toppin off the oil, it doesn’t mean the AOS is going to blow up. With other symptoms in addition to some perceived extra vaccuum the AOS is one culprit to check. Thats my take away.
The point being what you hear is hardly a red flag unless we have a similar video as to what is normal, or similarly had someone actually pulling on it in person that’s knows “normal” vs “abnormal”.
Can someone post a video of the “normal” sound without the cork pop?
Can several people simply go pop their cap under idle and listen for a little suction pop?
Without other symptoms or checking say the diaphram for damage, or having a pro measure with a tool it’s simply not as simple as a sound unless we have something to compare it too. Again i’m interested in helping people out not just trying to be obstinate.
If anything what this thread and others have offered is that the AOS malfunction is fairly nebulous until it’s really not and something is really wrong throwing codes and the engine runs rough. Short of looking in the lines and opening up the diaphram cap I don’t know one would know. It is something that is not expensive to replace and does commonly fail and can contribute to gunking all kinds of stuff up. You’d think it would be on some kind of maintenance schedule to check and replace. This to me is really the most concerning.
I’m performing maintenance over the next few weeks, plugs, valve cleaning, and simply looking for items like this to check for premature malfunction. I am considering replacing the part to see if i notice a suction difference, or in the least opening it up and seeing what the condition of the diaphram thingy is. From other threads the damage and tears are pretty obvious.
That’s what sucks. It’s not unlike carbon buildup on the valves. Do you have it or don’t? When do you worry about it? How do you tell without looking? Why isn’t valve cleaning just standards maintenance?
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i am not talking about you but video of OP.
Your comments are confusing him.
Watch and hear his vid first. Once you hear the huge pop noise when he removes cap youll understand. Plus sounds like car was short on oil too.
You don't need to watch another video to compare. Many on here have no AOS issues and easily catch on to 'this is avery abnormal' sound.
Yeah, its AOS, unless associated tubing contributes too. Had mine replaced on Porsches I own.
I've chimed in 5 times too many on this thread. Good luck with car.
Your comments are confusing him.
Watch and hear his vid first. Once you hear the huge pop noise when he removes cap youll understand. Plus sounds like car was short on oil too.
You don't need to watch another video to compare. Many on here have no AOS issues and easily catch on to 'this is avery abnormal' sound.
Yeah, its AOS, unless associated tubing contributes too. Had mine replaced on Porsches I own.
I've chimed in 5 times too many on this thread. Good luck with car.
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Hi, have you change the AOS. Can you take the cap better off or is it the same vakuum
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I judge based on the video.
in video, while car on, there is a popping noise when cap removed. Looks like it was an effort to do it too.
Based on that, and check engine light. It is aos issue.
Not sure what your mechanic was measuring.once as is plugged up, it clogs the valve making it hard for air to get through.
in video, while car on, there is a popping noise when cap removed. Looks like it was an effort to do it too.
Based on that, and check engine light. It is aos issue.
Not sure what your mechanic was measuring.once as is plugged up, it clogs the valve making it hard for air to get through.
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i never did get the check engine light for the AOS but i dont like the high consumption of ever 1600km. i am having another issue fixed maybe i should ask them again about it. thanks again for all of your advice
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If your car is a turbo, it will consume oil. About 250cc every 1k miles or so.
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When I purchased my 2011 4S in 2015, it had 44K miles on it and over the next few months I found it was using around 1 qt every 1k miles. I thought that was excessive even for a Porsche so I took it in for a service and told them of my concerns. They checked it out and replaced the AOS and since then it may use a qt every 5-7k miles which is a vast improvement.
