I'm getting ready to do a ATF change. I thought it might be a good idea to flush out most of the old ATF. It has 70K on the fluid and 141k overall. Shifts good, but just thought it's a good time. So I have the ATF +4 and fliter, there's two lines on top of the transmission that go to the cooler held on with spring style clamps. Not sure which one is which? Has anyone done the full flush by disconnecting the return line to the transmission? If so which one is the return? Is it the one on the drivers side or the other more toward the passenger (their very close to each other anyhow). Thanks

 

It doesn't really matter. Find another hose, attach it to the Transmission nipple, and dump both line into a container. One of them will shoot the old trans fluid out, right?

 

good point, thx

 

41TE?

Looking from the front of the van, the left hose out of the 41TE is the return from the cooler. The right side hose is the 41TE output to the cooler.