Its been a few years since I've recharged an A/C system, and I'm having trouble trying to remember some things. Is the valve to add more refrigerant right behind the air box? I tried to put my A/C pressure gauge on that one and it wouldnt fit.

Firewall, near the heater hoses.

thanks

I just added a can of refrigerant. I started hearing a hiss from the condesor I believe. (silver can under the air box). Now when I start the car I hear a high pitched squeel, not very loud. I think its coming from the compressor.

That silver can is the accumulator/drier. The condenser is in front of your radiator (or is that the evap core?). If not, the evap core is in front of the radiator and the condenser is inside the cabin. I always get those two mixed up.

Did your hose have a pressure gauge? It is possible to overfill the system without one.

Condenser is in front of the radiator; evaporator core is in the cabin.

After I put the can in the A/C system I checked the pressure again and it just dropped as the hissing continued. Theres no pressure now.

I took my car over to my neighbors garage and he and another neighbor took a look at it. The hissing is by the radiator. Like blackarrow said my neighbors told me it was the condensor, possibly the compressor is gone as well. Air conditioning is nice, but very expensive to repair.

Expensive... if you don't do it yourself. Best way is to call Ed. Ask for a low mileage compressor and a condenser. I'd buy a new drier as well, since they're fairly cheap and easy to replace.

Since you have a leak you can either let it bleed off the pressure (it will anyway) or have someone suck it out. Replace the parts, then have a shop vacuum it and make sure it holds. Then you can fill it yourself.

I'd recommend replacing the orifice tube, but they're a pain to get to in our cars. I'm regretting not replacing mine when I had my engine out. It would have been so easy.

I've had the compressor hoses break on me twice before I got rid of the car. I'd check those out before looking at the condensor.

The leak is coming from the condensor. After all the freon had leaked out my neighbor hooked his air compressor up to the a/c line to find out where the leak was coming from.

Compressors arent really cheap. I looked at Ed's ebay listings and I can get a condensor for $55 shipped, which is less than I expected. I have a friend at work that also works for NAPA and he said he'd get me a discount if I needed it. Being a full time student and only being able to work part time, money can get tight.