Where is low side ac port?
Country: United StatesMake: LincolnModel: NavigatorYear: 1999
Hello, The low side service port is located on the side of the AC accumulator on the firewall on the passenger side under the plastic cover.
Can you be a little more specific? I can't find it yet.
Its on the passenger side on the fire wall. You will need to remove the Plastic cover to see it, its down low. See the accumulator removeal instruction I am sending, you do not have to do that but it will give you better instructions. Look at step 7DOWNLOAD HERE
35 years as an automotive tech