passenger side near the fire wall. the smaller line coming out of the expansion valve. has a black cap on it.
Yes but you will probably have to install a service port.
The low side fitting is on the accumulator. Knowing how to service the unit is more important. Today's air conditioners require EXACT measurements or you will have problems. That is best left to a certified technician.
The AC low side service port on a 1999 Chevy Astro van is located next to the firewall. It is the port that is closest to the evaporator.
The 1999 Chevrolet Camaro OBD 2 port is under driver side dash above accelerator pedal
Low side service port is against the firewall just underneath the alternator. It has a Blue cap on it.
Pop the hood and its right in front of you, the one closet to the radiator cap, the larger suction hose...
In the ac system through the low side service port.In the ac system through the low side service port.
Follow the larger hose from the a/c compressor
look for the port with the black cap on it, it's the low pressure port.
check engine light
OBD II port.
It gets added through the low pressure service port. It is the smaller of the two ports.