Trouble with 3 MTH Genset engines.

Is it in the exact same place on the layout? (over a switch? or block end?)

If it's not the engine, check the rollers and wheels.  Dirty or loose rollers or dirty wheels could be the whole issue.

Feeders to both outside rails will help. Yes I know a car jumpers the 2 rails together  but feeders wires  are better. IMHO.

Gregg posted:

Feeders to both outside rails will help. Yes I know a car jumpers the 2 rails together  but feeders wires  are better. IMHO.

I just found that out trying to set up a temp layout. The realtrax lock on only goes to one side, and there's nothing jumping to the other besides the cars. The engines would stall after about ten sections.

Engineer-Joe - It does happen at some switches and also on curves.

Gunrunnerjohn - Rollers are tight and i cleaned the wheels.

Gregg - I use one side of the track as a detection rail.

It seems that the problem is with the front trucks.  If I have the engines in idle and move the front truck the engine will shut down.  I've had them apart and the wires to the trucks seem to be ok.

Thanks for the comments fellows.

Joe

Check continuity between the rollers on the two trucks.  Also, trace them all the way through to make sure they're solidly connected.

Don't forget the wheels and their continuity.  The Genset has four wheels on a side, but two of them have traction tires.  If you don't have common on both rails, you only have two wheels contacting the power rail.  How is continuity from the wheels to the electronics?  Do they have wires from the truck frame?

Sounds like for whatever reason the engines are not getting electricity from the track at different points.  Move a lighted car on the track and when the light in the car goes out, where the wheels are-is a potential break in the circuit. 

This gives you a good idea on where to look for this kind of problem. 

Good luck!!