I recently got back my Aeortrain from repair. If you look at the video provided, the loco will run fine without cars, but not with. The cars are not modified in anyway and are lubed. They roll fine. The engine runs fine solo, what could be the problem?
The repair tech has gargraves with grades and the groups I run trains at runs all atlas and it level.
It can pull all the cars when you give it a shove and run it over 75 smph. But won’t pull at low speeds