I am trying to replace my transmission cooling lines and can't seem to plug them into the quick connectors on the radiator. I have brand new connectors that screw into the rad and I tried to fit them to the line to check fit and it was very tight. I could only get it in if I pushed hard and twisted it at the same time. When I installed the connector on the rad I couldn't push hard enough and couldn't twist it at all. I even tried using a lever to pry it in but no luck. I only tried the lower one because the upper one would reduce access to the other. Any ideas?

 

Does your Equinox have the 3.4L (LS/LT/LTZ) or 3.6L (Sport)? On ours with the 3.4L, I had to remove the small metal clips and reinstall them after the hoses are inserted. Some people have been able to push the hoses in without removing the clips though. I suppose you could try lubing them up with some trans fluid before pushing them in, but I recommend removing the clips if possible.

 

It is an Equinox LT with 3.4L. I ended up sanding the ends of the transmission lines with emery cloth. I first tried it under the car but found it very difficult so I took the lines out and also the connectors on the radiator. I sanded both upper and lower lines until I could push it into the connector without twisting it. Everything is now back together and no leaks.