My Z-car sort of "stutters" when it drives.

[SoulflyCRX]

I just picked up a new z-car (bit clone) and most of the time when I drive it around the house, it is just fine. But sometimes it starts to "stutter". As in, it will keep keep turning on and off in rapid succession.

The z-cars have an LED In them, and when I am driving, it with keep flickin on and off. (It only turns on when the forward or revers buttons are pressed) and the car "stutters" and stops. If I get closer to it, or turn my controller slightly, it will start to move just fine again.

What is the most likely problem? Interference? I make sure all the parts within the car are secure. And help is much appreciated.

My freq is

[hogjowlz]

try this. take a q-tip(the kind with the plastic shaft) and cut the ends off and run the antenna wire through it so it sticks straight up in the air. that helped my zipzap somewhat.

[SoulflyCRX]

Well the antenna is pretty much bent up straight in the air. Its behaving very odd. I have another z-car and its the other freq. It does not do this at all