Purchased this particular SD40 at a train show, and took it home to run. All the features seem to work perfectly, expect it appears only the back truck/wheels are turning. Sounds like the front (short hood end) motor is running but the wheels aren’t moving (and thus the back wheels are spinning). Any ideas? Possible stripped gear maybe?
uploaded a quick video showing how it will barely move. Beautiful engine, just trying to troubleshoot the issue.