I have a 2004 4x4 a/t. almost a year na sa akin 'to. first time i took it out of town. napansin ko from 1st-2nd gear barely 1.5k nagpapalit na kahit very light ang apak ko. 2nd-3rd almost 4k. Is this normal? i had a frontier before na 4x2 pero manual. i use my pickup for loading and deliveries around metro manila so ngayon ko lang napansin 'to when i brought it sa batangas. tried switching sa power mode but same lang din ang result. nagpalit na ako atf ganun pa din. my fc in city drive is 8 km/l. nung long drive almost 10 lang. i was expecting 12 km/l since 80-100 lang takbo ko light traffic lang no load sa bed.

Possible kaya na faulty yung control unit ng tranny?