dslemaire

Recently I opened my AC system on my 97 Suburban to replace the hoses with the high and low pressure valves and the condenser. So I also replaced the receiver/dryer with a new one from NAPA. The new one came with Orings, but when I put them on they seemed to be too small on the side going to the evaporator. So I pulled it off and put on a little thicker Oring I got from an Autozone kit. It seemed to hold, for a while. But then after about 2 weeks it started to leak again.

I tightened it more, but I still have some dye leaking out when it shuts down. Running it doesn't seem to leak. But being low pressure side, when I shut down it starts to leak a little and I can see a very small bubble of dye coming out sometimes. With a sniffer I don't pick up a leak with the compressor running. But after I shut down and the pressure equalizes it starts beeping on me that there's a leak.

I did have a pinhole leak in one of the rear lines on the low side, and put in some "super seal" which actually worked on the pinhole leak without replacing the rear line. I don't know if it will help on my oring leak on the dryer though?

I'm thinking of returning the dryer to NAPA and getting a different one and take a good look at the orings. It just seems bizarre that they are too skinny. When I removed the fitting going to the evaporator it was difficult and I was concerned about the threads. But I am able to get it tight, so I would think my real issue is still the oring.

Any suggestions, other than hoping super seal will plug it! ??

Thanks,

David