I have a 2001 camaro ss- I was trying to remove the pressure line from the steering rack to the power steering cooler, but the hex nut on the end that connects to the steering rack would not budge. Everytime I used a wrench on the hex nut it would slip off or the nut would lose its form from the force. I got desperate and used a vice grip and it would just slip off and now I have a somewhat round nut. I just dont have enough leverage or room in there.
First- the power steering hoses that screw to the steering rack are like any other bolts or screws right! righty tighty lefty loosy
Second- I used wd-40 and it didn't seem to loosen or help
Third- the nut dosent have its hex form anymore its pretty jacked up
Fourth- I hope I was pushing, pulling and forcing the right way!
I was pretty much defeated and quit, I need assistance and hopefully the forum can come through to my aid.
Any suggestions on how I can get that **** thing off would be appreciated!
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First thing to try is Liquid Wrench (PB Blaster is another). This stuff smells nasty but left on for awhile has loosened everything I've tried it on, even solidly rusted components. You may have to let it sit over night.
The thing is, now you have "rounded" it off and are pretty much resigned to using vise grips or a pipe wrench. You can use a piece of pipe as an extension for leverage.
DO NOT use heat! You can easily destroy the seals in the rack and warp the rack housing!
I got the **** thing off on christmas eve, I pb blasted it, i bought a 18mm flare wrench and in the end the vice grips did the job. Only thing now is that apparently they dont make a replacement hose; pep boys, kragen and autozone did not carry it. Only GM dealerships carry it and the hoses are rare and were costing 103bucks. The proper name is steering cooler inlet hose and i got a new one on ebay for 75 bucks shipped.
Everytime I used a wrench on the hex nut it would slip off or the nut would lose its form from the force. I got desperate and used a vice grip and it would just slip off and now I have a somewhat round nut. I just dont have enough leverage or room in there. 
