[MARZBX157]

ok, try looking for a white plastic tabs at the end of the tube which you should press before pulling out. this is how I did it on my 2000 windstar, but this was at the transmission side of the line; the other end (radiator side) should be the same after removing the retaining clip. The tool pushes the tab in for ease of removal, but I used my fingers instead since there was more room for me to work at the transmission side of the line; and this is where most people do the flush procedure from. Is the line damaged or are you trying to do the flush?