Ha ha! Don’t get too happy, the engine cover muffles a lot of the noise so yours is prob just as bad! Lol
Me thinks it’s the injector seals! If you take your cover off, you should see diesel splattered around one of them and that’s your problem one! Apparently there is a copper seal that fails 😩
Good thing this engine is used in various other models as well as the Lexus! Loadsa people write up about it!