i was just checking the ac,the ac looks all new great condition,i removed the black and blue cap,then pushed in the pressure needles,there was very low pressure coming out,id like to assume with this car being 21 yrs old and still having all the original parts,however low mileage 66,000 maybe it just needs a charge,how do i tell if it still has the r12 in it,i dont think anyone ever converted it to r134,there is 1 smaller blue cap on the top,and one large black cap on the lower port near the radiator.do you think its a good idea to buy a few cans of arctic ice from autozone and repressurize it? i dont know how much oil the system requires,but i know there is a bottle that has the oil mix in it.i tested the ac compressor clutch,and it spins free but does not engage when selected,im thinking its just due to the low pressure.any ideas would be greatly appreciated.

Don't even DREAM of converting this virgin system away from R12. R12 can be easily and legally obtained by taking an on line, open book test for $15 and purchased for about $20 a pound on ebay or other sources. You can not convert one these days for the difference in price between 134 and 12 once you buy fittings and oil.

You are fortunate to have a virgin R12 system that is empty. Find the leak, fix it, evacuate and recharge. You will probably need to add a couple of ounces of mineral oil in the process.

You will be doing yourself a disservice if you let someone talk you into converting this system.

WOW,I THOUGHT I NEEDED A SPECIAL LICENSE TO USE R12,MAYBE I WILL BRING IT TO A SHOP HAVE THEM PRESSURIZE IT THEN DYE IT FOR LEAKS,THEN EVACUATE IT,BUT WONT I NEED TO FIND SOMEONE WITH THE R12,AND HAVE THEM PUMP IT IN.IF I CAN OBTAIN A CERTIFICATION THAT EASY I WILL LOOK INTO IT,THANKS LARRY.

The "special license" is an EPA 609 which can be obtained by spending $15 online to take an open book test. Will take an hour or so.

In your case getting the license and simply recharging with R12 would be WAAAAaaay less trouble, money and time than a proper conversion away from the refrigerant that your a/c system was designed for.

I second that stick with R-12.

The "special license" is an EPA 609 which can be obtained by spending $15 online to take an open book test,so larry if i look this up on a general search then should i be able to find the test?,also is there any sites or info i can study to pass this test?thanks guys

There are numerous sites where you can do this, but I used IMACA.ORG. Simply log on and download the study guide, peruse it and keep it handy while you take the open book test. I think you will find it informative as well as getting you the R12 you need.