[LukeFF]

Originally Posted by DrBeast

Leo and LukeFF, here's a heads up for you guys: you need to shorten the length of that sound effect to 15 seconds max. As it is now, it plays only once and then you won't hear it again for the rest of your game (unless you reload). From what I gathered at the Ultimate Sound mod thread, it's an SH4 limitation that non-looped sounds cannot exceed 15 seconds in duration. I've shortened it already (cutting off the two middle revving up parts) and now it plays just fine, albeit a bit louder than the actual diesel engine sound (I didn't touch the volume, only the duration). I don't know if you have a more fine-tuned version available, just thought I'd let you know.
It goes without saying that I can provide you with my shortened-down version if you'd like. Two minutes shaved off your workload may not be much, but my offer stands nevertheless

Thanks for the heads-up. I've edited the sound, and now it works properly.