Q: Are my steel lines broken on my radiator if they keep spinning when I'm trying to get them off? 2003 GMC Envoy

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I'm trying to change my radiator but my steel lines keep spinning when I'm trying to get them off
My car has an automatic transmission.

Hi - rather than broken oil cooler lines, I believe the problem is that the connections to the radiator for these lines are either compression nuts on the lines, or quick-connect fittings on the lines. In either case, the steel line can turn a bit - giving the impression the line is broken. Look more closely, and you should be able to see which of these two alternatives is implemented, and can removed them appropriately.

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