Troubleshooting my midsize DCS layout. Recently switched all turnouts to aux power. Suddenly getting erratic locomotive behavior-lurching, stalls, shutdowns (in the middle of tunnels!), etc. Unplugged the power source and ran locos with only the track power on. Much smoother operation. What's weird is that at a couple of spots, all the turnouts flash their lights briefly-yet they have NO power. Thoughts?
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Do you by any chance have one of the two going on:
Either of the above can and typically will cause problems.
What kind of track switches? What's the aux power supply?
Layout is lionel fastrack. I was able to isolate the sections of track and turnouts that were causing the problem. Although I couldn't see anything wrong, I rewired the turnouts and the power drops, swapped out a few sections of track and bingo, problem solved. Still not sure why-lol. One other symptom was my illuminated cars would go dull then bright, and make a slight buzzing sound. Ran everything for an hour straight and no problems. Barry, I don't have the common ground between the track power and the aux power, but will do that this evening. I know how to check for phase so it should not be much of a problem. Still, I am not sure how I fixed it! Thanks for the replies!
Shackdaddybass, if you ever use what you originally used here as a title in a post again, your posting privileges will be rescinded.
We don't talk like that here. 
Shackdaddybass,
Now that Rich has straightened out your language problem, I will tell you what probably happened to your FasTrack layout. More than likely you not only were incorrectly wired, you may also have a bad piece of FasTrack, shorting things out. Rewiring just slightly and removing your questionable track looks to have cleared up your problem. Keep a close eye on your switches for a while, you may have a faulty switch problem also.
PCRR/Dave
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