I have previously performed all those steps, it didn't resolve my problem. I put my train on a friend's track with my tw transformer the train still runs slow. If I use his Lionel 150 watt transformer the train runs really good. I removed cover off my transformer and checked each connector to case for resistance. Found wires not grounded. If I plug in the transformer and measure voltage from pin U to the metal part of case I read 10.3 volts. I think I should read 0 volts. But I can't find any shorts. If I had short I believe that the breaker would open.
Any thought
Thanks
Denny