A/C Compressor leak?
 

I have a 2000 chevy blazer 4.3L with an a/c leak in the compressor.. Kinda hard to explain where the leak is coming from but when I filled her up with the green refrigerant I noticed it later in a circle all the way around the compressor... Any ideas on how to seal or fix?

You need to isolate the leak. Is this florescent dye you are using? You mention seeing dye on the compressor, is that in the back around the lines or somewhere else on the compressor? A/C work is best done by professionals. If you don't have an machine to empty and fill the system just take it to a shop that does A/C work.

The original compressor on your vehicle was a Harrison HT6 and looks like this:

Attachment 31344

The compressor commonly leaks in the middle, where the two case halves come together. It is fondly referred to as a "belly leak". The compressor will need to be disassembled and resealed, overhauled, or a new or rebuilt compressor installed. If you choose to reseal it, overhaul it, or install another Harrison HT6, it will leak again in the future. If you choose a Sanden replacement compressor, it is designed differently, and it will not leak:

Attachment 31345

It is a direct bolt on replacement, and no modifications are necessary. They are available at some auto parts stores, Amazon, and Ebay.

Do yourself a favor get a new or rebuilt Sanden. Do not attempt leak stop additions. If you do you will be replacing more then you ever bargained for or have a truck with no AC. Plus the cost of the ac delete bracket and new belt.

This thread caught my attention, because I have a pretty bad leak somewhere in my ac, also. Four hours after filling up with freon, it's low enough the compressor won't turn on. I bought the UV dye stuff this afternoon, and hopefully I can get out there this weekend.

So the compressor is the usual culprit? I'm going to check everywhere I can, but are there any other areas that are prone to leaks?

Red, this I know for a fact, personal experience, if someone, in this case me, has been rough on the ports the shraders can get bent and leak.
The tricky part is that's were you dump the dye in so there going to glow for sure in that area.
Get yourself a couple of new ones, they are cheap and easy to install, if the center part of the compressor is not all lit up that would be my next stop.


Good luck, jeff.


Oh yea, do this in the dark. If you bought a kit the UV light they give you is just not strong enough for daylight.

Thanks for the advice! Hopefully I can get to it this weekend. I'm tired of Texas summers with no A/C!