Trouble with bacmann DCC turnout

[garyraizes]

I wanted to try the bachmann dcc turnout and just installed one on my test track.  Every time I run an engine through it on the "straight" route, the engine (I have tried three different with three different decoders inc. one bachman factory installed), buzzes and stalls.  All engines work fine through the divergent routes.  any suggestions would be appreciated.

Thanks in advance.