just wanted to let you know that there is only the i set of ports their is no second to the rear its all the same unit.
There is an overfill bottle on the right hand side of the block underneath the hood usually black
The low side port, which is the smaller one.
You can add Freon to your 2001 Buick Century air conditioning system through the low pressure port. The low pressure port can be found on the top of the air conditioner compressor.
3.4l or 3400 v6
In the low side ac service port.
To add freon to a 2001 Pontiac Grand Prix GT, locate the low-pressure service port on the air conditioning system. This port is typically found on the larger diameter aluminum line, usually near the firewall on the passenger side. Remove the cap from the port and connect the refrigerant canister with the appropriate adapter, then follow the instructions on the can for proper charging. Always ensure the system is not overcharged and consider consulting a professional if unsure.
open the hood and look straight down, the port is right next to the a/c pump it usually has a blue cap on it that screws off.
The low side ac port on a 1997 Pontiac Firebird should be located on a hose on the passenger side. The hose is close to the radiator.
From below the front of the engine, look up just behind the radiator. You will see the connection.
You will need to connect your Freon bottle to the low pressure port on your 2002 Chevy Cavalier air conditioning compressor. Release the Freon into the compressor. A Freon recharge kit will come with everything you need and instructions.
To add Freon to a 2005 Pontiac Grand Am, locate the air conditioning service ports under the hood. The low-pressure service port is typically found on the larger diameter aluminum line, usually closer to the firewall. After identifying the port, attach the refrigerant gauge or canister and follow the instructions on the refrigerant can to add Freon. Always ensure the engine is running and the AC is set to the maximum cool setting while adding refrigerant.
Freon is a brand name for various air conditioner refrigerants. Make sure you have the right refrigerant for the vehicle. Refrigerant is added to the low pressure port of the system, which is located 6 inches from the accumulator.