Replacing transmission cooler lines. On the transmission, Bottom line was a little difficult to get out but it came out. New line will not go in. Is the quick disconnect messed up? How hard to replace? Any tools someone can recommend to get it back in?

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2005 Liberty CRD, 245/75R16, OME CRD Springs front, OME HD rear

Haven't messed with mine yet but there are little plastic tools of different colors and sizes that fit around the line and reach inside pushing connector fingers aside releasing the line.

Ended up having to replace the quick connect with line. Oring inside had deteriorated. Fairly easy job, takes a 15/16 socket or wrench (I believe). Was concerned about losing transmission fluid but only a very little bit came out. Fyi the Napa part number that matched did not fit, ended up having to go to dealership. Part # is: 52119547aa

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2005 Liberty CRD, 245/75R16, OME CRD Springs front, OME HD rear