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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.
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
dank is fit
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.
Slide under the front end and look up at the compressor, its right there almost on the compressor.
below the steering wheel
The low pressure quick connect port is between the radiator and motor down low on a solid line that runs vertical just towards the passenger side of center.
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.
The 1996 Pontiac Grand Prix OBD 2 port is on lower edge of dash; right of steering column