Have a 3656 Cattle car where the doors will not operate. All wiring seems Ok and the platform operates and vibrates as it should but the car doors won't open. It has worked fine in the past and all I did was clean the gunk off the truck wheels and then the problem seems to have started, Doesn't seem logical Doors do operate when the car is placed on a RCS uncouple track so the internal piston does move freely. There is continuity between the power studs on the platform and the portion of the platform which contacts with the sliding shoes of the car. Do not have a clue as to the problem.
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