Hello my name is Evelyn and I have a 2015 Ford Fiesta SE that I bought new. When I first got the car is had trouble shifting, it acted like a 4 speed car. What I mean is it would whine when it changed gears. I have taken back to dealership many times and they said there was nothing wrong with it.. Now when you drive it it slips into nuetural while your driving and you have to put it in neutral and back in drive in order for it to move forward. Please can you help me?