If you give us more info. What truck? What radio system, 27mhz/2.4ghz? What servo? What type of rx battery are you using? Did you try new batteries? Have you dropped the trx? Has the rx/trx been wet or damaged?
problem solved being a rookie it was a typical rookie mistake, dead battries. Thank you for your wisdom this site helped alot I'm sure i will be back soon as I'm some what of a suicide driver lol