***This is a guide and is meant to be used as one.. I take no responsibility for what you do to your own car***
This is a guide to help some people that like the DIY projects. and like to save money. I am like that and wanted a way to put some chill back into my car.
so these are the steps i took, while following instructions set forth on the refrigerant can. I am by no means an Expert and do not claim to be one or claim to have all the answers.
This is what I choose to start the Recharge of my A/C system because it comes with a gauge so you do not over fill your system. There are others but this was what i desided was best for my needs. Its pretty self explanatory. the gauge is color coded green for low blue for filled or proper pressure in the system yellow, may be overcharged do not add any refrigerant. Red your system has a problem seek professional help. also seeing this is a first for most of you doing it your self it is a combination of things to help. Starts with the r-134a refrigerant, oil, a leak sealer which stops most leaks (usually located in the rubber components) larger leaks will need the work of a professional, also has A cleaner additive made to remove sediment deposits from the compressor wall, and finally an O-ring conditioner to prolong the life of whole system
Auto Air Conditioner Complete R-134a Service Kit
Will accurately charge, lubricate, and renew all R-134a systems
Charging valve & hose
14 oz. "CoolAir" refrigerant and oil charge can with
11oz of R-134a
2 oz. of ester lubricant with O-ring conditioner
1 oz. AC cleaner and Leak sealer
Color coded low side pressure gauge
You can use the gauge for ever and ever.. You will only need to buy this once then you can get just the cans afterwards
Do not attach it to your High pressure port or it will cause the can to explode and cause serious damage to you�re A/C and yourself
1. Find the low side service fitting. Its on the passenger side and has a blue cap with the letter �L� on the top
2. Connect a can of refrigerant to the gauge set or recharging hose and valve set. Follow the directions for the gauges.
3. Open the valve momentarily on the gauge set or hose to blow all air out of the line (this is necessary to keep from introducing air and moisture into your A/C system).
4. Connect the gauge set or hose to the low pressure port on the vehicle.
5.. In a good ventilated area roll the windows down, start the engine turn the to max blowing threw the dash vents wait a few minutes with the a/c running (5-10) and check the gauge. Proper filled pressure should be between 27-35 psi (this may very depending on the climate, typical ambient temp is 75 to 85 degrees Fahrenheit and higher at higher temps and lower in lower temps). The compressor should be engaged or cycling on and off (it may be necessary to jump the compressor clutch directly to the battery if the system is extremely low on refrigerant to keep it engaged).
6. Compressor suction will pull refrigerant vapor into the system and slowly empty the can. This can take up to 10 minutes or more. so be patient. Directions on the can say to hold the can sideways or upside down, some directions i have seen say dont hold it upside down. being this is a leak sealer/conditioner it is better to have this upside down so the oil and contitioner can get into the system.
7. When the can is empty, disconnect the charging hose from the low pressure. Use care when disconnecting the "empty" can from the gauge set or charging hose as it may contain some residual refrigerant.
8. After adding a can of refrigerant stop check the gauge then get in to your car and check the temp of the air coming out of the vents. some recharges don�t need much refrigerant to get it cold again. add more r-134a with oil if needed and if the pressure allows it.
If you add a can and pressure is not changing or the system is not getting cold consult a professional and have it checked out.
***DO NOT OVER FILL as that is dangerous and will damage your AC System***