Hi,
I read the ATF flush how-to and i am a little confused.
When disconnecting the fluid return line, which side of the return line I should disconnect from?
Radiator side or transmission side?

 

It's been a year or so since I've done this, but you want the old fluid to pump out of the radiator since that's the final part of the pumping cycle. So, you disconnect the line that returns the fluid from the radiator to the tranny -- transmission side, so you can bend the line to pump the fluid into a catch pan. IIRC, if you're facing the engine, it's the line on the right. I had some pics, but can't seem to find them <sigh>.

 

thanks for the information.
I will flush my atf soon.