Check your auto parts stores or local transmission shops. They usually have transmission cooler flush in a can, nothing more than a pressurized can of solvent with a hose, but works good. I use it when rebuilt a BMW transmission and I wanted to flush the cooler before hooking up the trans.
Afterwards I run a couple quarts of transmission fluid through the cooler to flush any remaining solvents left over.
Afterwards I run a couple quarts of transmission fluid through the cooler to flush any remaining solvents left over.
