Hello everyone,

My GF's civic is having a problem with the tranny, everytime you try to acelerate the car wont move until you turn it off and then turn it back on, even then, the car has a hard time shifting gears, Any ideas what could it be? I change the transmission fluid this weekend to dexton III, could that be the problem? any help would be apreciated, I'm totally cluless about hondas

Thanks.

EDIT: Forgot to mention, the car is auto.