Quote Originally Posted by tugasi View Post
hindi ba torque converter ang gamit ng conventional A/T, instead of clutch?
The torque converter transfers the energy from the engine to the transmission. The A/T still contains clutch packs used in shifting.

If after checking you found out that the ATF is still ok please check the setting of the kick cable in your transmission and the TPS, these two can cause A/Ts to shift at a higher rpm range. Otherwise could be a blocked valve inside the transmission.