Cherokeegirl89

I posted the other day about smelling smoke when I drove and I was told to adjust the settings on my ac it worked some what. I'm not getting the sound of it sucking air when I crank it anymore. But today started off normal then about an hour ago I had to go to the store and I went to crank my car and it made a horrible screeching noise and smoked. It did that twice then when I poured cold water in it, she cranked just fine like always but my start up temp was around 210 on the dot. I looked in my radiator and it didnt look milky just dirty as hell. And the coolant in my resivoir is still green and looking fresh and my oil is good as well. I'm not leaking anything I can see. So do I need a radiator flush? Any advice helps and feel free to message me.