The AC low pressure port for a 2003 Pontiac Grand Prix is located on the larger diameter aluminum line, typically near the firewall on the passenger side of the engine compartment. It is usually covered by a plastic cap that is blue or black. To access it, you may need to remove some components for better visibility, but it should be relatively easy to identify.
You can add Freon to your 2005 Pontiac Grand Prix air conditioning system through the low pressure port. The low pressure port can be found on the air conditioner compressor.
The low pressure port on the 99 Grand am is on the passenger side. It is right against the firewall.
The diagnostic port on a 2003 Pontiac Grand Am is located under the dashboard on the driver's side. Specifically, it can be found near the steering column, just above the brake pedal. You may need to remove a small cover to access it. This port is used for connecting an OBD-II scanner to read diagnostic trouble codes from the vehicle's computer.
On a 1998 Pontiac Grand Prix, the A/C refrigerant refill port is located on the low-pressure side of the A/C system. This port is typically found near the accumulator, which is located on the passenger side of the engine bay. It has a larger fitting compared to the high-pressure port, making it easier to identify. Always ensure the engine is off and the system is not under pressure before attempting to refill.
it is located under the car on the bigger line coming off of the a.c. compressor
If it is multiple port no less then 40 psi, if it is TBI throttle body fuel injection no less then 25 psi.
The 2000 Pontiac Grand Am OBD 2 port is on lower edge of dash; left of steering column
The low pressure port on a 1996 Pontiac Grand Prix is located on the accumulator/drier, which is typically found near the front of the engine compartment, close to the firewall. It is usually a smaller port compared to the high pressure port and is often covered with a plastic cap. To identify it, look for a port with a larger diameter metal fitting, which is designed for the low side of the air conditioning system. Always ensure the engine is off and the system is not pressurized before attempting to access the port.
dank is fit
Slide under the front end and look up at the compressor, its right there almost on the compressor.
The 1998 Plymouth Grand Voyager low pressure port can be found on the top of the air conditioner compressor. The low pressure port should be labeled as such.
below the steering wheel