It is behind the engine, up near the firewall.
By the fuel pump
The low pressure air conditioner port can be found on the top of the air conditioner compressor. The low pressure port should be labeled as such.
Trace the lines from the compressor. Probably toward the firewall you will find the low pressure port made to a sliver pipe.
on the fuel rail. Most do not have a test port. An adapter will need connected into the supply line.
There are two aluminum tubes coming out of the compressor. The high pressure tube goes to the condensor in front of the radiator. The low pressure tube is the other tube, and the port has a black plastic cap over it, on the low pressure tube.
On the ac line along the firewall.On the ac line along the firewall.
You charge through the low side port.You charge through the low side port.
On the evaparotor (black canister) on passenger side
2, a high and a low pressure port
I live in Varna, a town on the coast of the Black Sea and this town is known as the sea capital of Bulgaria.
The AC recharge port on a 2008 Ford F150 is located close to the hose that runs from the compressor to the accumulator. The hose is the low-pressure hose and you will notice a service fitting on the hose which is where the port is.
On a 2008 Lincoln MKX, the low-pressure port for the air conditioning system is located on the accumulator, which is typically found near the firewall on the passenger side of the engine bay. It is usually a blue or black service port and can be identified by a larger diameter compared to the high-pressure port. Make sure to use the correct tools and take necessary precautions when servicing the AC system.