i have the T4 adn when i turn too far to the left, it clicks and the wheels get stuck turned about half way to the left, does neone have a solution to fix this??

try another servo i had a problem like that on my old electric rustler that is long gone

Mke sure you have the right servo horn on it & the end points on the radio (if it has them) are adjusted properly.

Sounds like you are turning left to the stops but the Servo is still pulling and slipping a tooth on the servo horn. Coulld be the servo itself though, what kind of servo (brand & model#) is it?