How do i disconnect the copper tube on my 2000 jeep cherokee radiator?

[neveragainpunx]

There is a copper tube connected to my radiator in my 200o jeep cherokee with the inline 6. I cannot for the life of me figure out how to disconnect it. any help?

[COLEY]

That sounds like your oil cooler line. Im not sure about jeep. But on GM there is a plastic cap over the line fitting. If you take it off you will see the line going into the fitting, help on by a U shaped lock ring. If you push in on the line towards the fitting a bit, you can usually pull the lock ring with a scribe or pair of needle nose. But every manufacturer does there own thing differently. If you put a picture up i could tell you how for sure.
How is the line attached? Is it like i said or something different like a fitting screwed into it?
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