The part options doesn't list a low pressure line. Here are the options:
discharge hose(compressor to condensor)I guessing it's that one.
suction hose(
and liquid line(accumulator to evaporater)

It's located at the front of the engine on the top right side.(The Longest hose)




98 SVT E0 T-Red E1 engine resonator removed K&N w/ MAF adapter 20% tint Ford Trans. cocktail Ford 9mm Racing Wires DMD