Repair or service of air conditioning components is covered in this guide only for reference. Most air conditioning service must be performed by personnel who have been properly certified. Cost, personal injury or death, environmental damage, and legal considerations (such as the fact that it is a federal crime to vent refrigerant into the atmosphere), dictate that the A/C components on your vehicle should be serviced only by a Motor Vehicle Air Conditioning (MVAC) trained, and EPA certified automotive technician.
If your vehicle's A/C system uses R-12 refrigerant and is in need of recharging, the A/C system can be converted over to R-134a refrigerant (less environmentally harmful and expensive). Refer to General Information & Maintenance for additional information on R-12 to R-134a conversions, and for additional considerations dealing with your vehicle's A/C system.