How to get one more summer out of an old crappy A/C


#1

My leaky A/C was diagnosed last summer and I was told that the system would need to be O/H and pretty much replaced in order to work properly.



However it still cools at 41 degrees and the compressor still cycles,



it just still leaks.



Will a fresh recharge this spring with a can of stop leak do the trick? How about that “high mileage” refrigerant with leak sealers built in?



I’m not willing to invest the money to properly repair the a/c. The car is 21 years old and rusted through with a carburetor and I will be getting rid of it next year.



Advice? Thanks.


#2

It doesn’t sound like you have much to lose. Run it until it loses pressure and give the stop leak stuff a try, it will either work or it won’t. If it doesn’t work, you will be hot.


#3

Any idea where the leak is ?

If it’s the compressor seals, there isn’t much you can do other than overhaul or fit a replacement. If your car uses R12, the recharges might cost more than an overhaul ~ that stuff is hard to get and isn’t cheap.


#4

Your leak might be a simple o-ring leak. These are usually easy to find and repair. Less than $100. On the other hand, a $15 can of R134a with oil, sealant and a built in connection fitting will likely get you through the summer. I have used the coolant with sealant and the systems always continued to leak. Your results may differ.
I just caught the 21 year old bit. There is a R-12 replacement called Freeze 12. It much cheaper than regular R-12. I have only seen this coolant in cans that require a special hose or manifold set to install. Your cost differential is getting smaller.