Best way to get trans fluid out of transmission?

T64me · Post by **T64me** » 23 Jan 2018, 11:34

My 1996 Volvo 850 was in an accident and the radiator was damaged which allowed coolant into the transmission cooler. I've replaced the radiator but now I am wondering how to get as much contaminated trans fluid out of the transmission as possible before I refill it. I know I can pull the drain plug, but there will still be fluid in the transmission itself. If I leave the lines that go to the transmission disconnected from the new radiator/cooler and start the car, will it pump out the remaining contaminated fluid? If so, do I need to put the car in drive to do this? Obviously, I am concerned about damaging the transmission so any input on how to avoid doing so would be appreciated.

Thanks in advance for any constructive input.

Erik

Post by **erikv11** » 23 Jan 2018, 12:18

With the car in park, disconnect the top line from the radiator, and hook a clear tubing onto it leading to a container. Start the car with trans in park, and it will start pumping fluid. Your best bet is to do a continuous exchange until you get bright pink fluid pumping out of the trans. That will take about 14 quarts. You can feel very comfortable using cheap DexIII from Walmart for this procedure, thats what I give all of my 850/x70 transmissions.

This procedure is written in great detail in many places and videos, here is one of the original posts about how to do it: viewtopic.php?t=8767

Good luck!

Erik

Post by **abscate** » 23 Jan 2018, 12:30

Erik - is this in famous Gibbons method, invented by..

Post by **scot850** » 23 Jan 2018, 15:16

Looks like a mechanic that worked on my car....maybe he was so bad as they paid him peanuts...!

Neil.

Post by **FLXC90** » 23 Jan 2018, 16:26

He was a real "Grease Monkey", huh?

Post by **oragex** » 23 Jan 2018, 18:09

This topic turned funny, yet strangely true.