I'm back again with another issue with my Legacy Lionmaster Challenger 3977, model 6-82695.
A while back I posted about the hesitation this engine had and with the help of the forum I was able to determine I had to clean up the ring on the rear motor which fixed that issue.
Yesterday when running the engine I noticed it get stuck on the track and while the rear truck wheels kept spinning the front truck did nothing. I was able to get take some Micromark rollers and put the engine off the track and I noticed exactly that, under power the front motor wasn't driving the wheels. I did notice that if I increased the speed significantly, I could get the motor moving, but nowhere near the speed of the rear motor. I had noticed this issue in the past but at the time the front truck just always moved slower than the rear truck as opposed to not at all now. I have attached a video as evidence.
Is this an issue with the motor or something else in the locomotive? I went over the whole thing looking for loose wires or weak connections and found nothing. I also took the truck off and checked, the wheels roll freely and the motor spins freely.