Check your thermostat
Read this site............... http://autoacrepairs.com/134aConversion.htm
R-134A. DuPont was the originator of this refrigerant (not Freon) and they called it Suva 134A.
I believe is the 134A. Check in your engine compartment for any stickers... near or on the a/c unit.
There were some R134a units in 1992, but they were not the norm. Most likely, you have an R12 unit, which requires retrofitting in order to be compatible with R134a.
Probably close to or more than a new unit would cost.
you add the refrigerant in your outside unit but still is going to circulate to your inside unit doing a complete loop
It uses R-12. But if you need to add freon you might have to retro fit the a/c unit by changing it to R-134a wich is a replacement for R-12.It takes about a can 1/2.
It came with an R-12 system. To determine if it has been converted to an R-134a system look at the ports. If the threads are male then its an R-12 system and if the thread are female then its been converted to an R-134a system
Freon may need to be added when the ac is not blowing cold enough. A Freon gauge can tell you for sure if the pressure is low.
Freon is stored in the compressor unit of an air conditioning system.
To put freon in an AC unit, you need to first locate the service valve on the unit. Then, attach a charging hose to the valve and connect it to a freon tank. Open the valve on the tank to allow freon to flow into the AC unit. Be sure to follow safety guidelines and regulations when handling freon.
Find the a/c dryer and it is the low side of the a/c unit, that is where you fill the 134a Answered by Littlestown Lube & Brake Littlestown, PA 717-359-5022