I started having problems 2 weeks ago. First, It did not turn over then the next day it started and starts fine now. However it feels like it's stuck in low gear. I was driving it and the brake light went on so I had the brake line fix that started leaking and the front brake pads changed thinking the breaks must be getting stuck. However the car is still dragging and has always slipped/jumped once in awhile. I was wondering if the transmission fluid change would fix this problem I can notice past 30mph?