i was doing some work on my car and found a hose to be covered in wet residue from what i would assume to be a small oozing leak. i did some research and found them to be the AT fluid cooler lines coming from the bottom of the radiator. heres a picture
this isnt off my car but of someone elses who has aftermarket cooling fans so u can see the lines better:

the circled line is hte one thats leaking on my car and the highlighted area is the part of the hose that looks "saturated".
anyways, i was curious how imperative it is to address this issue, and how difficult it is to fix the leak. thanks for looking.
