Refrigerant: Description and Operation

This vehicle uses a new type of refrigerant called R-134a. It is a non-toxic, non-flammable, clear colorless liquefied gas.

R-134a refrigerant is not compatible with R-12 refrigerant in an air conditioning system. Even a small amount of R-12 in a R-134a system could cause compressor failure, refrigerant oil to sludge and/or poor performance. Never add R-12 to a system designed to use R-134a. System failure will occur.

A/C Service Port Valve Location:

The A/C service port valve cores are located within the A/C lines. The High Side (Discharge) valve service port is located near the filter-drier on the right side of the vehicle, behind the wheel well. The Low Side (Suction) valve service port is located near the receiver drier beside the air inlet.

Refrigerant Recovery/Recycling Station (Typical):

When servicing a system, it is required that an air conditioning charging recovery/recycling machine be used. Contact an automotive service equipment supplier for proper equipment. Refer to the operating instructions provided with the equipment for proper operation.

Manifold Gauge Set - Typical:

A manifold gauge set must also be used in conjunction with the charging and/or recovery/recycling device. Only use gauges that have not been used for R-12. The service hoses on the gauge set should have manual (turn wheel) or automatic back flow valves at the service port connector ends. This will prevent refrigerant R-134a from being released into the atmosphere.

R-134a refrigerant requires a special type of compressor oil. When adding oil, make sure to use the oil that is specified on the under hood label.

Due to the different characteristics of R-134a it requires all new service procedures.

The use of R-134a will have a positive environmental impact due to it's zero ozone depletion and low global warming impact.