How frequently does the automatic transmission fluid need to be changed?

[sansag13]

Originally Posted by CTScott

The total capacity if the U340 AT is 5.68 quarts, but when you pull the drain plug only a bit over 2 quarts will drain. Pulling the AT cooling hoses and draining them and the AT cooler portion of the radiator drains about another quart. The remainder stays in the valve body and the torque converter.

Thanks Master Scott,

Need little bit more detail here.

1)Where cooling hose is located?
2)How can I suck the ATF out of it? With some suction pump or when I turn on the car, it will pump out it for me.