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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.
Single Pressure Gauges for Indl., Commercial & Specialty Uses
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
Jeep GrandCherokee SUVs manufactured in or before 1995 use R12 refrigerant. You must
retrofit these SUVs to accept R134 refrigerant using a retrofit kit
available at your local auto parts store before you can recharge the
system. In some areas, a license is required to retrofit an air
conditioning system. If this is the case in your area, take your Jeep
to a professional to retrofit the system.
your SUV to a mechanic to recover the R12 refrigerant out of the air
conditioning system. A license and special equipment are needed to do
this. Because R12 refrigerant is expensive, many mechanics will do the
job for free.
the Low Pressure Side connector port. You will find it on the driver's
side of the engine. Remove the blue or yellow cap marked L. You only
need to retrofit the system if you see a screw-type connector valve. If
you see a quick connect valve, the system already is R134 compatible.
Wipe the connector valve off with a clean towel. This ensures that the
retrofit connector properly adheres to the valve.
the long retrofit connector from the automotive retrofit kit onto the
Low Pressure Side valve. The retrofit connector has a special adhesive
on the threads that will help it adhere to the valve. Screw the
connector onto the valve. Tighten the retrofit connector using an
adjustable wrench. Place the cap provided in the retrofit kit onto the
retrofit connector. This keeps dust out of the system.
the air conditioning lines away from the compressor until you see the
High Pressure Side port valve. This is located near the Low Pressure
Side service port. Remove the red cap and wipe the port off with a
the shorter adapter onto the port. Twist it using an adjustable wrench
until it is securely fastened to the port. Place the red cap from the
retrofit kit onto the adaptor.
out the Retrofit Identification sticker provided in the retrofit kit
using a permanent marker. Remove the protective backing and place it on
the interior side of the hood. This lets future owners and service
professionals know that the system has been retrofitted.
the air conditioning system. See the related eHow titled "How to
Recharge Air Conditioning with Freon in a Jeep Grand Cherokee."
WARINING: Never try to evacuate the system yourself. A license and special
equipment is needed to evacuate the system. Attempting to do this
yourself will release refrigerant into the air, which is a federal
First, the old R-12 must be completely evacuated fromt the system. R-12 and R-134A do not mix and won't function together. Once you are sure there's no R-12 left in the system, you need to install an R-134A fill valve on the low side AC line. This is where your refill hose will connect to add R-134A. Once the valve is in place you're ready to fill the system. The compressor requires a minimum of 20psi to engage and should not be filled to more than 45psi.
RECHARGING AC SYSTEM
1.Turn the truck on and turn AC on HIGH 2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire) 3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet) 4.Insert the other end of the refill hose to the low side valve 5.Puncture the R-134A can with the screw on the refill hose 6.You should feel the system suction the refrigerant out of the can 7.Check for frost on the AC lines and the air blowing inside the truck 8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective Hopefully this answers your question and you're able to get your AC working again. Best of luck.
I'm not sure if the system on that car is 134a or R12. There should be a decal under the hood that will tell you which one you are currently running, or on the compressor if it is easily visible. If it is an r12 system, you will have to buy a retrofit kit that converts the charge fittings to take 134a, as they are different size fittings.
Ok, heres a tough one. In 1995/1996 car manufacturers switched from using r-12 and began using r-134a. If you vehicle uses r-12 you need to put a retrofit kit on you car in order to change to the new r-134a. The best bet for this is to have a repair shop do it as the system needs to be emptied and vaccumed down to check for leaks. r-12 is very harmful to the environment and needs to be handled accordingly. Once the retrofit kit is applied, then you can use r-134a and you are good to go.
2000 maxima is filled with R134, not freon. You don't need retro fit kit. Get couple of cans of R134 and pump it into the low side valve /small fiting, while A/C compressor is engaged. If your compressor is not coming on, jump the low side pressure switch to make the compressor come on and than the R134 will get sucked in to your system through the low side line. The proper way to do this is to put a/c system under vaccum for 15 minutes at least and watch for leak/gauges coming/loosing vaccum. Than pump R134 into the HIGH side valve with engine OFF.