Just a short note to thank the people on this forum for helping me to repair my 97 STS. I'm not sure of the name of the person who originally psted the thread, but it was related to engine overheating issues. I was convinced that I was going to have to have my cylinder head gaskets replaced, or purchase a rebuilt engine, because it would'nt stop overheating! I then saw the thread about cleaning out the coolant purge line on my engine, I found that mine was plugged solid. I cleaned it out really well, flushed the cooling system for good measure, and my car has run fine ever since, 2 months now! Thank You Guys Again.