dacaur

Sorry I'm not sure how to check it, but each knob and pot you can access on the radio should be labeled look for throttle end point or ATV (Adjustable Travel Volume).... i'm sure someone that has that truck can help you there.... On more thing it could be is the servo itself... did the guy at the shop test it by unplugging the throttle servo and plugging in a different servo to see if it does the same thing... (If not he should be fired) if it does the same thing the problem is either a defective radio, or just the throttle end point (ATV) set wrong. If it does NOT do the same thing, the problem is a defective servo.