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Follow lines from compressor--Larger one is low side--Port maybe at the rear of engine passenger side near the drier
You can find helpfull information about your vehicles ac system including where the low side port is located on this web site www.idqusa.com just click on locate low side port.
If would depend on the make model and engine size. You can locate most of the low side ports on the link below. Just follow the "Find Your Car's Low Side Port" icon.
The low side port is located on the air conditioner compressor. The low side port will be the entry for recharging your air conditioning system.
look in the drivers side where the door closes, it has a sticker with all the info you need.
The 2005 Honda Accord OBD 2 port is under driver side dash above the kick panel
The 2005 Kia Amanti OBD 2 port is under driver side dash next to steering column
In the ac system through the low side service port.In the ac system through the low side service port.
The 2005 Volkswagon Touareg OBD 2 port is on under driver side dash next to kick panel
Follow lines from compressor--Larger one is low side--Port maybe at the rear of engine passenger side near the drier
The 2005 Hyundai Accdent OBD 2 port is on lower left dash next to driver side kick panel
The 2005 Honda Accord OBD 2 port is under driver side dash above the kick panel