Not sure what your asking yes you charge from the low pressure port it is the smaller one your hose should not fit on the high pressure side
Low pressure connector is at the front of engine below front exhaust manifold behind the electric fan for the rad....
No
The Freon recharge port can be found on the top of the air conditioner compressor. There will be two ports. The recharge port will be labeled as the low pressure port.
On passenger side, it is located on the aluminum looking can called the "Accumulator'.
The recharge prot is on top of the "drier", which is located under the passenger side wheel well. Will-
To recharge the air conditioner on a 2000 Dodge Intrepid, first, locate the low-pressure service port, usually found on the larger diameter aluminum line between the compressor and the evaporator. Attach a refrigerant recharge kit to the port, following the manufacturer's instructions. With the engine running and the A/C set to maximum, slowly add refrigerant until the appropriate pressure is reached, checking with a gauge if available. Be cautious not to overcharge, as this can damage the system.
The recharge is located right beside the radiator cap. There should be a green Cap on and it should be labeled AC recharge.
The 2000 Acura air conditioner low pressure service port can be found on the top of the air conditioner compressor. The low pressure service port will have a blue top.
The recharge port is located on the passenger side near the firewall.
The air conditioner recharge port on a 2000 GMC Savana van is typically located on the low-pressure side of the AC system. To find it, look for a service port on the larger AC line, usually near the compressor or near the firewall on the passenger side of the engine compartment. The port is usually capped with a plastic cover and may be labeled with "L" for low pressure. Make sure to use the correct refrigerant type as specified in the vehicle’s owner manual.
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The 2000 Chevrolet Silverado truck has two ports on top of the air conditioner compressor. You will add Freon through the low pressure port.