With my stampede 4x4 vxl about 5-10 minutes into the run if the car comes to a dead stop it will not move unless I give it a small push, then it is fine. When it has stopped if I pull full throttle or reverse the light will just blink and there will be a small beep. Also, if I unplug the battery, plug it back in and turnit on again it is fine.
I have recalibrated everything, and on one run when I turned the esc off then back on again at the very beginning of the run it worked fine for the whole run.
Battery: stock 8.4v 3000 maH
transmitter: stock TQI