1. Unscrew the threaded cap of either of the two service valves.
WARNING: Wear safety glasses when working.
2. Carefully press the valve stem tip with a thin, long-tip screwdriver.
WARNING: Release refrigerant from the air conditioning system in a well-ventilated area or outdoors.
The refrigerant is in a gaseous state at atmospheric pressure. Release the refrigerant from the system in a very thin stream. When releasing the refrigerant, some of the oil mixed with it may splash out. To protect the underhood space from contamination, place a cleaning cloth around the service valve.
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