check if your atf pan has a drain bolt. if wala ganito muna gawin mo.

1.drop the tranny atf pan. discard the atf sa pan.

2.change your atf filter.
3.replace your gasket with a new one.
4.tighten the tranny atf pan.
5.put new atf fluid with the proper specification for your vehicle.
6.perform an atf dialysis using the correct atf again for the vehicle.
7.check for proper atf level.
8.observe if problem disappears or any improvement

if meh drain bolt yung atf pan mo,

1.drop the tranny atf pan. discard the atf sa pan.
2.change your atf filter.
3.replace your gasket with a new one.
4.tighten the tranny atf pan.
5.put new atf fluid with the proper specification for your vehicle.
6.check for proper atf level.
7.drive for a while (2-3kms)
8.drain atf again using the drain bolt
9.replace atf through dipstick (amount to be poured is based on how many you drained on step 8)
10.observe if problem disappears or any improvement

after doing the above procedure saka pa lang natin pwede i-assume if wala magbago
na there could be a possibility that there is a problem within the components of the automatic transmission.