i have been having a prob with my radio it is a futaba 2ph sometimes it goes full throttle and i dont have any control over the throttle but i still can steer it when i turn the transmitter off and back on it works again for a while i have also tried my reciever and transmitter that came with the redcat and it does the same thing could it be in the servo any help is appreciated

I don't know for sure, but it sounds like your battery is going dead, or the receiver looses signal, then the receiver goes into failsafe mode... BUT the servo is reversed???, thus creating full throttle instead of an Idle position??? Just a guess... I'm no expert when it comes to car radios.

MPB

it has new batteries and i have put 2 diffrent recivers in it i have put 3 new sets of batteries in it

Does it happen in the same area? It could just be some sort of radio interference.

Did you replace the servos too?

And did you say you can steer it with the transmitter turned OFF??

i just tried it in an area about 2 miles away from any houses or buildings in an open field and it still does it . it goes wide open and i cant control the throttle but i can steer it but if i turn the transmitter of and back on then it works right again and also i switched the steering and throttle and everything worked ok i dont understand, but it was hard to drive like that and also i did chace the servo on the throttle

You still didn't tell me if you replaced the servos too...

have you dropped your transmitter? And (this was on an electric, but radios are radios) I have seen a steering servo make the throttle act goofy. I don't know why it happened, but as soon as the steering servo was replaced, everything was fine.

I would replace BOTH servos and see if that solves your problem.

i have already replaced the throttle servo

Does it happen at close range or any range ?? Close range you could be flooding the receiver signals. I used to get that with my Hitec in my Stinger . The car had to be at least 20 feet from the Tx

well it does seem to do it more at close range but it just started doing it

My Hitec never did at first either. I do not know what causes it but I know it is pretty common. I would go to the Futaba forum and ask , they should have the answer.

At any rate...if you've replaced all that stuff, and still haven't replaced the steering servo...steering srevos are NOT hard to replace, so why not replace it just to SEE if it works?