I am assuming you have no leaks that must be repaired. To begin you will need a conversion kit with all the necessary materials. It will include: 2 new adapter fittings, 2 -3 cans of R-134, and a hose with adapter. Once you have all the materials, you can begin the process. The first thing you have to do is have the R12 recovered with a refrigerant recovery machine. (It is illegal to just open the valve and let it out in the air.) As I am sure you do not have such a machine, take it to a professional shop and have them remove the R12. As R12 is very expensive, they should remove it for free, just to aquire it for resale. You may even get a few dollars for it. Now that the air conditioning system has no pressure, it is time to install the new valve kit. The bigger one goes on the low pressure side of the system and the refrigerant hose will only connect to the low side valve. It is pretty hard to mess this up. Now that the adapter valves are connected, it is time to start the car and put the air conditioner on high. Turn the blower fan to its highest setting as well and open the windows. Grab a can of R134 and hook up the hose and T valve that came with your kit. With the hose hooked up to the can begin to twist the T valve until it punctures the can. Then open the valve to let some freon out and purge the air in the line. Turn the can upside down and hook it up to the low side adapter valve. Now slowly open the valve and let the Freon flow into the system. At this point the compressor will begin to cycle on and off. Don't panic, this is normal. Keep adding Freon until the system begins to cool. You can feel the low pressure line begin to get cool and condensation will accumulate on it. (Do not grab the high pressure line. It can burn you.) You probably will not need all 3 cans and be careful not to overfill the system. If the air conditioner is still not cooling after the second can, something is wrong. You may have a leak in the system or some other difficulty. Do not be tempted to keep pumping R134 in the lines. If the low side line is cold and dripping with moisture you are done. If you have a A/C Manifold Gage Set, the low side should have a pressure of 40 - 50 psi.
how to convert r12 to134r
how to convert auto air from r12 to134r
r12
It came with R12. Due to the high cost of R12, I suggest you convert it to R134a.
You do not as R134a is what is approved for that car. If you could find R12 it would cost you near $100.00 a pound.
You cAnt sorry
Yes, it came from the factory with R12. R12 was used up until late 1995. I suggest you convert it over to R134.
R12 unless it's been converted.
Would have been built for R12, can be converted to R134a.
The S10 vehicles with an R4 compressor require different amounts depending on the year model. 1987 and earlier factory require 40 oz of R12 and 88 and later require 56 oz. To convert to R134 use about 85% of that amount.
R134a
R12 unless it has been converted. I would convert it over to R134 due to the price of R12.