 Engine bearing problems and things like that. It has like a little thumping noise from the bottom of the engine. They have all kinds of problems, literally. So is it on cold startup? Is it warm? Is it cold? When does it do it? How many miles are on this now? 60, 2,000. That's about right. Those have a shelf life that seems like, I don't know if you'll remember the old Cadillac 4100 engine.