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I am stumped by this problem and hoping that somebody can give me a tip....

I have an MTH Premier Genesis Engine Protsound2; older model with 9V battery.  I have replaced the battery with a BCR. When placed on the track (with DCS TIU) it is recognized, starts up, fully functions. The minute I try to move it, however,  it shuts down. If I wiggle it a bit, it will start up again and may or may not be recognized again by the TIU.  Occasionally, I can get it to move and once it is rolling, it seems fine until I stop it again and then the same behavior as above.

The BCR is doing its job because if I kill power to the track, sounds persists for 5-10 secs as expected.  It is not a rail issue because all other trains work fine.

I conclude that this must be a roller / pick up / contact issue on the train.  However I have inspected and cleaned the rollers.  I have even tried to clean the wheels to make certain there is good contact with ground.  I have never had an engine behave like this.  Is there something else that I should check?  It really seems like it might be a wheel to rail contact issue, but the answer is not obvious to me.

Any thoughts?

Thanks.

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Excellent question (so I just tried it) -

In conventional mode (variable output of a Z4000), it powers up but the moment I push the [DIR] button to move, it shuts down and also trips the internal Z4000 breaker (need to turn off the Z4000 and turn back on to restart).

So now I am thinking some sort of short in the motor?

This is not a good sign

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