i checked it n it had fluid, i even added lucas to it and it still pops outta gear. i dont really jam it into gear it just uses a lil more force to do so,... the stuttering happens just outta nowhere, like ill be driving n then a lil stutter will happen n im not even tryin 2 accelerate im just rollin at driving speeds.... n i really dont wanna do any rebuilds, would a diagnostic be able to tell me wuts wrong or no?