Where do i fill the AC on my 88 Bronco? I have the R-12 just don't know where to hook up the hose.

 

Do you have a leak or has the system been down for some time. Hate to see you throw away some high dollar R-12 for nothing. At the risk of sounding blunt, if you don`t know where to hook the hose up, it would be best left to a professional or someone who knows something about A/C systems. You can waste alot of money before you blink an eye. If the system is working fine and you just need to add a can of freon, the low side port should be on the accumilator/dryer. DO NOT HOOK YOUR HOSE TO THE HIGH PRESSURE SIDE. The can will explode in your hand and face with possible permanent blindness occurring. You would be better served to let someone with some guages and experience look at it. Sorry if I sound to direct, I just hate to see you waste your hard earned cash or get hurt.

 

Well, i've had my neighbor look at it with all the equipment. We've checked for leaks, and also done everything. So, i know for a fact all i need to do is hook it up and put it in. As for the R-12 it really wasn't that expensive ($6.00/12oz. can). All i need to know is which port i need to fill it in. I know how to do it i'm just not sure which one is the low and which one is the high.

 

You would connect to the low side port located on the accumulator drier area. It is under the hood on the passenger side right next to the evaporator core housing. That is where it is on my 88 any way.

 

thanx for the help. I filled it tonight and it works good. Just blows a little slow. Dino where are you in south texas? I'm in the rio grande valley.

 

Did you get the R12 in Mexico?

 

No i was able to obtain in the states. It is actually more expensive in mexico.

 

Are you in the trade then? I didn't know that anyone still sold R12 to the public, especially in canisters. I'd like to convert the converted R134a system in my 90 back to R12, as it works better than R134a in systems that were designed for R12, but the lack of easily available R12 is the problem. I thought that only authorized people could buy it, and that it only came in the large tanks and cost a lot.

My converted system works well, except it tends to get warmer at idle due to the R12 condenser being smaller. I suppose that I could get a bigger condenser, they are recommended to do the swap properly, but drives the cost up by a couple of hundred dollars.

I think that an electric pusher fan would work as well as a larger condenser, by moving more air over the condenser at idle. It's hard enough to keep a cabin the size of a Bronco cool in 100 degree weather, especially without the windows being tinted any more than stock. Especially a black Bronco like mine. And the fiberglass top probably does not provide much insulation without any type of a liner. But with all that, my AC works fine except for the slight increase of the AC air temp at idle on a hot day. And since I live in Colorado, it's not much of an issue and I have been cool all summer. Back in Florida, where I used to live, it was more of an issue on scorching hot days with 98 percent humidity.

 

My neighbor that has a lifted Ramcharger did a unique thing to keep his cab cooler. Since his rig is only for off-road and he usually doesn't use the rear seat, he made a curtain that seperates the back right behind the front seats. He can fold it away if the back seat is needed. Similar to the class dividers on a commerical airplane. It keeps his truck very very cold, which is important in texas. I'm thinking about doing something similar someday, maybe. For now, i just need to work on the engine. I guess the AC was cheap to do since it cost me $35 with the hose, oil, stop leak, and R-12. By the way its called Freeze 12. Its the same as r-12. The place said they were recommended by the MFG. to sale only to liscence holders, but from what i'm told there are other places that sell it w/o having to have a liscence.

 

my neighbor did this with his R-12 system, in addition to the curtain. It keeps it below 60.

 

I forgot to mention a couple things. In order for the freeze 12 to be legal there are a couple things that i forgot about in my price add up. It actually came out a little bit higher since there are things that need to be done besides the basics that i listed. First the old r-12 must be purged and collected, then i needed to install the r-134a fittings, high pressure cut-outs and then i had to re-label it. Luckily i had access to free use equipment to remove the old r-12 from the system. So i came out still good.

 

Freeze 12 sounds interesting. You say that it needs R134a fittings? Mine is already converted to R134a. Are you saying that all I need to do is evacuate the R134a and oil, and replace it with Freeze 12 and oil? I would like it if the idle issues that plague R134a conversions could be eliminated.

 

Pilot, I am glad to hear that you are up and running. I know what it is to be without ac in South Texas, I am from Corpus.

 

Jbronco, it keeps it very very cold in idle. I haven't run it on the road since i re-charged it, but its cold enough for me in idle. I don't know if it will run in r-134a compressors, but i think it might. Its cheap and comes in 12 oz. cans. Just look for it on the internet, i know they have kits that include everything needed to do conversion.

 

I don't know hardly anything on AC, would putting R-12 in a R-134A system be a bad idea, hearing that it keeps it colder at idle sounds nice....