Hey all, I've had the Poncho parked for a while since I've been traveling for work. Just got back and fired it up, and all of the sudden have 2 new engine noises that I've never heard before. First started a high pitched whining noise, which I immediately thought to be either belts or vacuum leak. I've checked the belts, tried lubing them and double checked tension - it's not the belts. So I'm guessing that high pitch whine is a vacuum hose somewhere, I'm still tracking them down and checking for cracks. Any other ideas? Second, after running for a bit, this knocking noise started and is getting louder and louder. Increases with RPM (just like the whine). It may sort of sound like exhaust leak on the video, but it's not that, it's definitely an internal engine noise. Any ideas on what this might be? Any help or ideas is appreciated!