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Saturn Condenser has 2 O-rings

JavaJoe on Mon February 17, 2014 6:51 PM User is offline

Year: 1996
Make: Saturn
Model: SW2
Engine Size: 1.9L
Refrigerant Type: R134a
Ambient Temp: n/a
Pressure Low: n/a
Pressure High: n/a
Country of Origin: United States

The AC in my '96 Saturn SW2 recently stopped working. I discovered that the upper condenser fitting had come loose allowing the refrigerant to escape. It is the high side connection coming from the compressor. I fully disassembled it to inspect and clean it. I was surprised to find 2 O-rings. Is this correct? Are there supposed to be 2 o-rings there?

Since the o-rings are clearly damaged, I will need to replace them. I have some leftover O rings from previous conversions on my Toyota and Acura vehicles, however I'm not sure they are the correct material. They are from the kits purchased from AC, and they are a green material. If I have the correct size, would it be okay to use them?

Obviously, a small amount of oil escaped along with the R134a. Is it necessary to add any additional oil, and if so how much? I believe that this system uses PAG oil, is that correct?

Thanks very much.

GM Tech on Tue February 18, 2014 10:32 AM User is offline

As long as there is a place for two- it's okay-- Are there two o-ring grooves? If not, then someone has tried to fix a leaky connection by putting two o-rings in there.

BTW - this is called a dual o-ring connection when there are two o-ring grooves-- I've actually saw a three o-ring connection as well.

The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

Dougflas on Tue February 18, 2014 5:43 PM User is offline

Some of the GM's had a thicker O-ring. They were a capture type. Make sure you use the correct one. It is possible someone used a regular o-ring instead of the capture type. Then they doubled up because it still leaked.

JavaJoe on Thu February 20, 2014 12:01 PM User is offline

GM Tech and Dougflas, Thanks for your responses. There are no grooves on the male part of the fitting. I'll have to open it up again and look at the female part on the condenser. I'm going to try to post a picture of this fitting, which should give you better information.
Saturn Condenser O-rings

Dougflas on Thu February 20, 2014 12:09 PM User is offline

looks to me like a regular o ring.

JavaJoe on Sun February 23, 2014 11:48 AM User is offline

I finally located a Chevy dealer who supports Saturn vehicles. Per their parts diagram it is a single o-ring, which I purchased. I'll let you know how it works out.
Thanks again for everyone's help.

northernbeach on Mon February 24, 2014 4:21 AM User is offline

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