I have been checking suspension parts to start replacing them and while i was under my 99 3.8, i realized there was a wet line. Traced it back to the transmission and well it goes up and i cant get a hand in there much less a wrench so.
A. There are two lines running from bottom passenger side of radiator all the way to transmision. are these the tranny cooling lines.
B. Was this cause do to a dumb shop doing a tranny fluid flush on it without telling me. I took it in cuz it had a transmission code when the check engine light came on. I took it in to just have them check it out and they flushed it. Now its leaking.
C. Are these lines something an ameature should be messing with

 

those are the trans cooling lines and are tapped into when doing a trans flush. i would say the shop either pulled on em and caused the connection to fail or if they removed them reinstalled them wrong. i would recomend dropping the rear of the trans to get to the connections, the the rear of the trans it dropped in this pic, you can see the cooling lines

 

Those fitting are very easily cross threaded, and when that happens they will always leak and the lines will have to be replaced.