The ports on the 2.7 vehicles are located differently than on the ones with the other engines. Both ports are on top of the passenger side frame rail on the engine side of the fender well.rbska8ter24 said:Hi. I own a 1998 DI 2.7. I was trying to recharge my AC system but it looks like the coupler can fit on both the low side port and the high side. Which one is witch?