I hear a whining noise comeing from the transmission after the engine has reached its operating temperature. and also when accelerating it starts jerking and the RPM's jump up and down. like as if it is a stick shift car in a high gear with a low RPM or something. the other thing i noticed when in a parking lot i was going very slow with the RPM's at about 1,000 and i felt the tranny come out of OD and go back into OD on its own. anyone got any ideas?