i have a 02 gtp with 90000 miles in which trans is acting up.does this intermittently... at times when starting from stop.engine rpms will rev up and trans will jerk into gear.it also acts really sluggish at times when in any gear at crusing speed.sometimes at a speedbump if i come to complete stop at it and give it gas it does not wanna roll over it.it also does this at high speeds if i kick in overdrive it will hesitate a lil then jerk into gear.fluid is not burnt or discolored.it does not do this all time. someone please help... all the trans shops i take it to cant give me a detailed explanation this prob has even caused a cv shaft to shear completely in half