whiteb16crx

I just got this civic from the orginial owner the car has 117k miles and all stock. the car runs good. sometimes in the morning it will hold second gear until i hear alittle grind then shifts normal after that. my wife use the car and she said she shift in reverse and wont go into reverse but has forward gears. then she puts it back into reverse and has it again. any thoughts. I 'm going to change the fluid and see. i think i might need a auto throttle cable too it might be no good.