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Plane engine brr sound from the back? E91 2007
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10-18-2024, 06:54 PM | #1 |
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Plane engine brr sound from the back? E91 2007
Hello, had a weird experience today. E91 2007 M47
Went around 90kmh or around 55-60 mph down a street today, started hearing what sounded like a plane engine, a old cropduster type of plane "brrrr" sound. It came from the back of the vehicle, stopped when I reached around 70 kmh or around 40mph(?). Then started again when back to 55mph. Once I started doing 35mph for a while, then went back to 60mph, the sound was completely gone, but I know that around highway speeds (130kmh or 80mph) the bearing has some woosh sounds. What could be causing the brrrrr noise?? |
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