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#1
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Weird end of rev rumble.
https://youtube.com/shorts/ZMic6zD0Q80?feature=share edit:2006 BMW X5 3.0i E53 |
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#2
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Manual or auto?
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
#3
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#4
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That sounds like something out of balance, maybe broken or cracked fan?? are the idlers vibrating?
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#5
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I looked and doesnt have any visible vibrations. I just started it cold and the noise wasnt there. So i guess it something that appears when warm.
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#6
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DISA valve? It does open above 3XXX RPMs. Vanos?
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#7
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DISA was replaced with about 12k miles on it and I don't hear the standard flapping/rattle noise from it.
Vanos unit was replaced about 8k miles ago. It sounds like its something from under the car because when I have someone rev it while I'm in the engine bay I don't hear it as much as I do from under the car. |
#8
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Air idle valve? Pitch repeats so it can't be busted cat.
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#9
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I did a google search about the air idle valve. The car doesnt any symptoms fron the list. Never stalls, idle is quiet and isnt rough. Honestly just gonna let it go for now. I just drove it 20 mins ago and the noise isnt present. Im just gonna let it go for now and see of it gets worse or if i get an warning lights. Cuz car is running fine just noise was bothering me.
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#10
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I haven't listened to your clip but on my 4.4 the ac compressor makes a weird rumbling noise after 3k rpm. Due to have it replaced soon.
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