Hello po mga Sir,
Ask ko lang po yung problem ng Van ko baka po meron makapag advice.
My van is Kia Sedona A/T
Pagdating ng 70Kph nag slip sya from 4th gear to 3rd gear, biglang tumataas yung RPM nya and ramdam ko yung pagshift nya kasi parang biglang hinatak yung van.
Already change yung Fuel Filter baka kasi doon lang, A/T fluid pinalitan ko na rin pero ganun parin nag slip parin.

Please advice hindi ko kasi alam kung may Filter or adjustment yung tranny ko. wala kasi akong makitang mechaniko na may alam sa sedona.

Thanks in advance!