Advice Needed - Legacy F3 A Front Truck Not Conducting Power-Next step?

Put "atlas dead spots" into the forum search. You'll get lots of information.

Thanks, RickO

Have you checked to verify it isn't loosing the common connection due to an insulated rail?

BobbyD,

Yes I have and I have found the problem, or at least part of the problem. All my commons are tied together. When I lift the loco front truck, power continues. When I lift the back truck, power does not continue. The front truck is not picking up power so there must be a connection issue. I have taken off the truck but do not see anything loose. Suggestions?

Easiest check is to run a multimeter continuity check between the wheels on the front and rear trucks. Do the same for the pickup rollers.  If its an open circuit, then one of the trucks isnt connected to the other. If, as you suspect, the front truck is missing its electrical connection, then you'll have to pop the loco open and trace the wires from the top of the trucks to the plug for the board. I would test from the board plug to the truck as well once you get the loco open. I would think it has to be between the wheels and the board.

Boilermaker, many thanks for your help