If you are planning to get as much fluid out of the converter (if not equipped with a drain plug) - when you drop the pan loosen the valve body. You will see plenty of fluid drain out from the TC then. The converter will now be half full.

Flushing the TC using the converter out (to cooler) method will not get nearly as much fluid out as loosening up the valve body due to fluid vortex within the converter when it is running. Fluid coming in is mixing with fluid within the converter before it leaves the converter.

(You can also stroke the front servo piston retainer with the valve body loose and force fluid out of the front servo this way).


This has been proven repeatedly at Chrysler (FCA).