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What you are wanting to add is R134a Freon. The port that you are talking about looks like the same connection that is on your tires. It is called a Schrader valve. They have a cap on them like a tire valve stem. They are located on the air conditioner lines that lead to and from the compressor to the cabin. They are different sizes and if you are not familiar with them, find someone that is because you can get hurt or damage your a/c if you make a mistake.
1Start the recharging process with any left over freon you may still have. Open the Civic's hood and attach the kit to the Civic's low side port. Then, set the kit onto a place in the engine compartment where nothing can move or shift once the engine has been cranked.
2Start the Civic and let the engine run until it reaches its normal operational temperature.
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3Turn on the airconditioning to its coldest and hardest-blowing settings. Place a thermometer into one of the Civic's air conditioning vents and monitor how the temperature drops. Once the air conditioning's temperature reaches a level, constant degree, remove the thermometer.
4Open all four doors on the Civic. This will allow any colder air generated to escape, and this will keep the Civic's air conditioning for accidentally cycling off while you recharge the refrigerant levels.
5Turn the recharging kit's valve all the way down and let the refrigerant charge into the Civic's air conditioning periodically, shut the valve and look at the kit's gauge. This will allow you to monitor the recharging process. Allow at least one minute to elapse between refrigerant charges into the system.
6Shut the valve of the canister, once it has become depleted. Disconnect the kit from the low side port.
7Detach the hose, gauge, and valve from the empty canister and attach them to a new canister of refrigerant. Reattach the kit's hose to the Civic's low side port and continue recharging the system, allowing a minute between individual charges. The can itself can potentially grow very cold and hard to hold, even with gloves. Should this happen, wrap the can in a towel warmed in water. Ring out excess water before wrapping the canister.
8Place you thermometer into one of the Civic's air conditioning ducts. Keep an eye on the falling temperature within the Civic's air conditioning system. The system is charged when the temperature hits 40 degrees. Also, within the engine compartment, the Civic's air conditioning aluminum tubing become uniformly cold.
9Shut the recharging kit's valve and remove the kit from the low side port, once the system has been successfully recharged. Shut down the Civic's air conditioning, turn the engine off, and remove your key from the Civic's ignition. Also, shut all the doors
There are 2 ports, a high pressure and low pressure port. Both are in the engine compartment. I would suggest you get someone who knows air conditioners to do the work. This can be dangerous since Freon is extremely cold and can cause burns (freezer burns). Also you can damage your air conditioning system, and then it will cost big bucks to repair.
mcdevito75 here, The A/C chrge port is on the low side of the A/C system, follow the metal lines comming out of the firewall from the evaporator until you find the charge port, it may be covered with a screw down cap. The kit you buy to charge the A/C will only fit this port. Of course look for this chargeing port when the car is cold.
Ok this port for charging in the pipe thicker tries to recharge the system with a UV dye that this is where you said because if you drain your A / C because it has no gas is leaking
the only charging port is the low side,follow the large ac line/hose untill u come acrosss it it will be small compared to the high side port on the small ac line/hose dont use this port to charge
Sounds like the A/C system just needs to be recharged. When was the last time you had this done? Just take it in to your mechanic and he can do it for you and if that's not it for some reason, then he will be able to find the problem but most likely you need more freon added.
they are two fitting depending what year this car is? this car should have one red cap ( small port) blue cap ( big port ) you will want to use the big port. if the vehicle came from the factory with r134a in it then the hose will only hook up to the charge port so you cant really go wrong there. just dont over charge the system and check for leaks after your done
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