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02-23-2022, 01:12 PM | #1 |
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N55 PCV Valve Went Bad
First off, please excuse my French/frustration.
So I had a repair shop replace the entire valve cover and gasket on my 2011 N55. When replacing it, the new one immediately failed, so they had another one put on (all being ordered directly from the local dealership). Cue 4 months later the PCV valve is chirping like a canary similar to all the different threads. Since it is built into the valve cover, I'm required to buy a whole new valve cover (4 months after doing the original goddamn one). Is there any risk of damage by driving with a bad PCV valve? I really don't feel like shelling out more money on this god forsaken shit engineering. This whole situation is ridiculous with 3 valve covers going bad within 6 month. |
02-25-2022, 11:16 PM | #2 |
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BMW parts come with a 2 year warranty over here. Surely they would have something similar there. Was it a genuine BMW part?
Last edited by F31B48; 02-25-2022 at 11:57 PM.. |
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03-12-2022, 07:27 AM | #3 |
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Instead of replacing my valve cover I simply replace the PCV valve. I get it from amazon for $14. Heres a link to one I've used. https://www.amazon.com/dp/B085MX6MKZ...ing=UTF8&psc=1. I also wanted to mention that it may not be your PCV system, it may be your front or rear main seals. Im assuming your vehicle has high mileage, so I would recommend using Castrol 5W30 synthetic high mileage oil to treat those seals first before shelling out more cash. Hope this helps.
Last edited by K.david; 03-12-2022 at 07:31 AM.. Reason: Additional info |
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03-13-2022, 11:01 PM | #4 | |
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03-14-2022, 07:24 AM | #5 | |
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It also stops whistling/chirping if you take off the oil fill cap, that's how I know the PCV is bad. |
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03-18-2022, 10:11 PM | #6 | |
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Edit: Lots of edits, drinking whiskey. |
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03-21-2022, 07:47 AM | #7 | |
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Now that you mention it, after the new valve cover was put on, the front crank seal did start whistling while it was still at the shop, so they replaced it. I wonder if it's just a bad seal... |
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03-29-2022, 01:48 PM | #8 |
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As I continue to think about it, the PCV has to be bad, or the front seal wouldn't be chirping, even if it was incorrectly installed and leaking...
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06-10-2023, 09:10 AM | #9 |
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Sorry to revive an old thread, but I have been experiencing the same exact symptoms you have explained. Replaced the entire valve cover, and the howling/chirping still persisted. I am thinking it is most likely the front crank seal or the rear main seal seeping. Did you ever get this issue resolved? TIA
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06-10-2023, 07:25 PM | #11 | |
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