All of this happened without warning? Like gradually increased noise? I think it's bad luck or accidental overrev that would cause the noise to appear suddenly (i.e., something decided to give up out of the blue).
How does your engine idle? Did it increase or become inconsistent? If you get leaks or droplets, I'm pretty sure you'd smell something by now.
That noise is definitely scary. I realized the sound in the video I made were just ticking injectors. Phew! Yours is definitely different.
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