A/c lines
 

I've noticed a couple on a/c lines that branch off from the low side line not too far from the service port that run somewhere into the inner workings of the engine compartment. Does anyone know what these lines go to or why they are there? Thanks

The low side line connects directly to the TXV which is located very near the firewall. Is this what you are referring to?

Fuel Cooler lines...not all models used them.

Oh - THOSE! Yeah, forgot those were there...

Oh, they don't really feel that cool, but they aren't hot either.