The A/C is blowing warm air? What is the factory refrigerent? Can I easily change to the new 134a?

First thing to check is the level of the Freon in the system. Probably has 134a in it. Open the hood and look for the air conditioner compressor. When you find it turn on the engine and look at it again to see what parts are turning. Then go turn on the Air conditioner and you should hear the compressor kick on, look at it again to see what new parts are turning and then wait to see what changes when the air gets warm. This is an indication that there is not enough 134a in the system and when the pressure drops on the low side of the compressor it shuts off.

It could, but before you add freon, check your fuses and relays. If you add freon, make sure you use a gage and don't over fill it. Too much freon can

You can buy refrigerant R-134a at any parts store.

the attachment that comes with the r134a will only fit one of the fittings correctly. do not force it on. should snap on with the quick connect easily. it should be on the L side or low pressure side.

The Problem is the refrigerant. R-134A doesn't last as well as the old R-12. Best bet is to "evacuate" the system, and recharge with new refrigerant. Your system should take 1 can of R-134A Oil with Conditioner, and about 1.2 cans of R-134A refrigerant. The system is easy to work on, and rather in-expensive if you do it yourself. You should have a certified auto repair center do the "system evacuation". I hope this helps you, and I wish you luck on the repair.

your system uses the old refrigerant type r-12 which is no longer available. you will have to get the system change overto the new refrigerant r-134a. it will cost loads of money.

Hi,
A couple of things will cause this problem. The first is making sure the compressor has voltage (blown fuse). The most common is it is low on refrigerant. Freon 134a. Good Luck.

probably a leak.

what are your high and low side pressures?

There are special cans of R-134A with dye in them for detecting leaks. Most leaks occur around the fittings near the compressor. Recharge the system with the leak detector can or R-134A. There are also cans of R-134A with an additive to stop leaks. I would use these products to either detect your leak or to stop it. Best of luck.
Greg

system may be over charged/compressor or control valve failure