vehicle needs to have the transmission replaced

This video shows the job being done on a similar car but the process is the same. step by step with instructions in the diagrams below to show you how on your car.

https://youtu.be/3vJAojsrfuU

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

I have to replace the whole coolant line, and cannot get the end that is attached to the transmission off.

Those are push connect fittings, you slip the tool down over the line and they should pull free. Then you sort of pull the line down and out. Make sure you have the front out first as the line needs to twist a bit for it to come out.

Okay got it. Thanks