You should not attempt to recharge the ac system unless you are qualified to do so. There are a lot of things that can go wrong. Take it to a dealer or repair shop and have them test the system, as there may be a leak. If that's the case, recharging it would only cost you money.
Connect a freon tank and gauge to the Buick Century low side ac port. Start the car and turn the ac to high. Open the tank and allow freon to flow. Shut the tank off when the gauge reads full.
The 1994 Buick Century air conditioning low side port can be found on top of the air conditioning compressor. The low side port will be labeled as the low pressure port.
The ac recharge port is the low side port. It is on the hoses on the passenger side of the engine close to the belts.
Connect a freon gauge and freon tank to the low side ac port. With the engine running and ac on high, open the freon tank to fill the system to the full line on the gauge.
Low pressure port should be on the firewall by the fan motor What fan motor?
The AC low pressure port on a 1999 Buick Century is located on the side of the AC accumulator. This is positioned in the left, rear of the engine compartment.
To change the AC compressor on a 1994 Buick Roadmaster, first, disconnect the battery and recover the refrigerant from the AC system. Remove the serpentine belt, then disconnect the electrical connectors and refrigerant lines from the compressor. Unbolt the compressor from its mounting brackets and replace it with the new unit, ensuring to replace any O-rings or seals. Finally, reconnect everything, recharge the system with refrigerant, and test the AC for proper operation.
To replace the AC evaporator on a 1999 Buick Century, first, disconnect the battery and relieve the refrigerant pressure. Remove the dashboard and the center console to access the HVAC housing. After removing the housing, disconnect the evaporator from the refrigerant lines, and replace it with the new unit. Finally, reassemble the HVAC housing, reconnect the refrigerant lines, recharge the system with refrigerant, and test the AC for proper operation.
The low side port for recharging the AC on a 2000 Buick Century is located on the refrigerant line that runs from the evaporator to the compressor. Typically, it can be found near the firewall on the passenger side of the engine compartment. The port is usually capped with a plastic cover and is smaller in diameter compared to the high side port. Always ensure the engine is off and the system is depressurized before attempting to recharge the AC.
Passenger side silver canister by the bulkhead
Its located on the accumulator...................
The low pressure AC port on a 2000 Buick Century is located on the accumulator. It is used to fill the system with refrigerant and to check pressure levels.