Glitching servo

[Troys trail finder]

Hi my name is Troy, and I am a long time builder, but I am having a problem I cant seem to figure out and I am hoping to get some help on this.
My problem is that I have a servo that jumps and twitches when I am going forward or reverse, the servo is brand new and I changed it out to see if it was just the servo but it happens on any one I put in. Do you have any idea what this could be.

I recently put in a light module for turn signals and such and it stopped working and this is when I developed this problem. Any ideas???

Moderator's note: moved to a new thread in the proper section

[edwardpacola]

It could very well mean you need to get a bec. Sounds like to much draw going out.