Having trouble with my talk n action James

[Super]

Now I am no expert on the TnA engines but it sounds to me like you have a split gear somewhere. Not sure that with the TnA engines you can check it this way but can you turn it on and lightly press on the drive wheel? If the wheels stop turning but you can still hear the motor running its probably a gear that has a split or crack in it. I wonder if member, Powerful Gordon Mike, has a video of this on his YouTube Channel. Lets check
https://www.youtube.com/channel/UCrsJSHJ...1VA/videos

BTW: Welcome to BluePlasticTracks Nick.