Dedicated LVC Member
- Dec 10, 2005
- Reaction score
how does the fluid exchange machine that the dealerships have work exactly?
vacuums fluid from cooler hose and pumps new fluid back in?
Picture a big clear cylinder with a disk in it. To the right of the disk is fresh new fluid. They hook it up to the cooler lines and start the car. The transmission itself pumps the old fluid out. As it fills up on the left side of the cylinder, it pushes the disk and forces the new fluid into the transmission. They stop it a little bit after fresh clean fluid starts to come into the left side.