Since I butted in on Al's topic, I want to report what I learned when I got through today about my engine with the inoperable rear coupler. Since Lionel was closed in the spring, they are still behind 2 or 3 weeks for service. They will email me when they are ready to send me the RMA and instructions to send the engine to them for warranty repair. I didn't even mention I had left a message on September 3rd, but suspect it got overlooked over Labor Day. That's okay with me. Those things happen. They are taking care of the problem.