Buy a recharge kit and a # 134 refrigerant; follow directions. If the system is low, the compressor will not start so you will need to remove the connector on the pressure switch which is located on the dryer. The dryer is the silver cylinder on the passenger side. There are two metal prongs that you can jump across with a wire or pliers while your recharge kit is hooked up and soon the system will take a charge ;then you can plug in the low pressure switch and the system will work again.
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.
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.
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 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.
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.
Check blower motor fuse Check to see if compressor is working
On a 2002 Buick Rendezvous, the AC recharge port is located on the low-pressure side of the air conditioning system. To find it, open the hood and look for the AC lines; the low-pressure port typically has a larger diameter and is usually covered with a blue or black cap. It is usually found near the firewall or close to the compressor. Always ensure the system is off before attempting to recharge the AC.
how much ac oil do i put in my ac copressor
Its located on the top of the a/c compressor..................
Under the air filter compartment.
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.