Quote:
Originally Posted by kang
That’s good info, thanks. I wasn’t aware there were two kinds: the kind that swells seals and the kind that stops leaks. I need the kind that stops leaks. I don’t think there is any moisture in my system, as it was just purged and recharged. As it slowly leaks, I think I’ll refill it with a stop-leak product.
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I used A/C Pro's stop leak in my 1991 mustang. It has the r12 to r-134a conversion kit. I bought the stuff that was JUST stop leak. So long as you follow the instructions to the t, it is a great produce. It claims that as long as it takes 2 weeks or more for your ac to stop blowing cold, it will work. However, mine was leaking out in 4-5 days and it sealed right up. i used it 2 years ago and haven't had to add any r-134a yet. just keep in mind, IT IS NOT REFRIGERANT!!! You will have to add that immediately after so that it does not clog up your service port (where you add refrigerant). Honestly, I have tried many products of this nature and anything that is freon and stop leak together doesn't work. I have never had luck with it and I've never heard of anybody who has but I will definitely be using A/C Pro stop leak again. And just so you know if you decide to try it, it is in a black can and it is one of the only ones that advertises to seal metal leaks, o ring leaks, and compressor leaks. idk what the success rate is but it definitely worked for me.