Low pressure hose follow- larger hose from a/c compressor In front of the firewall. Passenger side. Cap is blue (likely under the dirt) Hint: Do this when your engine is cold or you'll likely burn yourself since it's low down
Look under car...look for blue c as p near compressor...
The port is located on the firewall, top/center.
On my '93, there is no consumer serviceable port. I think the recharge has to be done by a technician.
Black capped port on the front left (as you face the car with the hood up) of the engine compartment. It's right by the radiator in my 3.4L SE1.
I have a 2003 Grand Prix GT and the AC recharge port is right behind the motor on the firewall. Look for the silver pipes coming out of the firewall right near the middle. You will see the recharge port on one of the pipes there.
Its located on the top of the a/c compressor..................
Under the air filter compartment.
The 2000 Pontiac Grand Am OBD 2 port is on lower edge of dash; left of steering column
lay on your back and look up at the compressor in the right front section of the engine compartment, it is a fitting on the larger hose coming off of the compressor.
Open the hood and look to your left and right below the coolant reserve tank you should see a silver steel line going across the engine at the very front of the hood right by the hood latch and you will see on the left side right on this line a black cap and that is your "recharge port" for the R134A AC. hope this helps! I got a 2001 SE and that is where mine is.... :-)
below the steering wheel
The 2000 Pontiac Bonneville air conditioning compressor low pressure port is located on the bottom of the compressor. You can recharge your cooling system through the low pressure port.