So today I went to start my Libby to get ready for work, and it starts smoking as soon I put it into reverse to get out of my drive way! I turn it off ASAP and see that it's smoking, and there's a little muffler shaped tube like piece at the bottom of the engine bay that seems to have oil around the ring, and there's a dripplet of oil on my driveway. Anyone know what it could be? I'm freaking out!