My 93 jeeps ac system no longer gets cold, and needs R12 refrigerant which obviously is pretty much unobtanium. Is there some way to get the ac system working again, or am I just stuck with window ac?

Thanks

 

There is a R12 substitute if you want to go that route... But a 134A conversion would be the usual choice..

 

What all does the r134a conversion entail? Is it a complete system replacement or just a few parts? Thanks

 

R12 is still available.
many on ebay, 12 oz cans $20 _$30

 

Search R152a conversion. I did a writeup some years ago on an S10 forum.

 

I can't remember the number, but I use a substitute refrigerant and it works great. You can also use a combination of propane and butane which is easy to get and works well. Since you are low on refrigerant, the most common thing to happen is that the coil gets too cold and ices up then the air won't get cold. Adding refrigerant will fix that

 

If you still want to use R12, you can take a $20 test (and pass) and get EPA Sect 609 certified which will allow you to buy R12.

https://www.epa.gov/mvac/section-609...ation-programs

Granted, R12 is expensive but it's the BEST material for an R12 system.

Regardless of refrigerant, make sure you fix the leak first.

I did mine through Mainstream Engineering.

 

You need 2.4 lbs, and R12 is running $60-$100 per pound. Plus you probably need to replace the dryer anyway. It's cheaper to convert or use a substitute.

 

Thats what I did same place also. Need some R12 for my ole Nova.

 

On a side note I have noticed that most all new window AC units sold these days have a big red tag on them stating about how the "new and improved" refrigerant is highly flammable...

 

First thing you need to do is see if you have lost charge of have a bad ac clutch. If it's low/ empty then you need to find and repair your leak or you're just throwing money away.

There is a lot of r12 still kicking around, most conversions will require a simple oil change in the compressor ( evap and condenser should be flushed). Either route is fine whatever makes financial sense is best.