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      03-25-2024, 01:16 PM   #3
jpfei05
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Drives: 2011 BMW 335is
Join Date: Apr 2020
Location: Denver CO

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Quote:
Originally Posted by iqraceworks View Post
Can you put the old PCV parts back on and see if the sound goes away? Probably a bad aftermarket flapper valve or PCV valve.

I was actually going to try to re install the old valve to see if it changed anything but like an idiot i accidentally threw it away. From what i found the only way to get another oem style is to purchase a new valve cover. heres a link to the replacement i used

https://www.ecstuning.com/b-ftp-moto...t/sg84036~ftp/

the description says Increase reliability on a stock and upgraded N54.

I even called ECS and asked about the issue but they're saying they normally dont have issues with those valves. The directions that come with the valve say if spring pressure is too high to cut a link off the spring but when i called ecs they said not to cut it.

heres some pics and video i recently took
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