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In this video I show you what it took to get rid of a squealing sound which is common on N55 BMW engines.
We attempt replacing the PCV valve with an aftermarket solution and eventually replace the entire valve cover. The PCV fix might work for some people but if you already need to do your valve cover gasket and you're encountering the noise I'd recommend a new valve cover. You can purchase an aftermarket valve cover for under $120, here is a link to the one I purchased:
www.ebay.com/i...
Here is the PCV valve I tried:
www.amazon.com...
Here is a link to my valve cover gasket DIY:
• N55 Valve Cover Gasket... When you see the word "affiliate" listed beside any link in my description please know that this is a custom link and I will earn a small commission if you opt to purchase using said link. This is at no extra cost to you so it's a win all around :) Thank you!