something is really wrong with the rustler
 

so some reason when i start my truck up she just goes FULL OPEN but the carb is shut the throttel servo isnt even moving at all it shows that its shut. i changed all the batterys 2x and still no fixen it. if my feet dont stop it it just goes ripping down the road until it hits something and stops

RE: something is really wrong with the rustler
 

take off your air filter and confirm that the carb is actually closed. Sometimes the throttle linkage in the carb will need to be repaired: it will seem fully closed according to your servo but it actually isnt moving the inside of the carb itself.

Only other thing it could be is for some reason you might be running insanely lean.. like when your truck is ideling and is starting to run out of gas and revs up through the roof before it dies.

RE: something is really wrong with the rustler
 

no i got it pretty rich right now to try and fight this heat but it isnt working, and about the carb it is closed i checked i dont not understand what is going on. if the carb is closed and the truck going the speed it does when i start it up it would die to lack of air