i have a 2007 chevy silverado classic version/edition its a v-6 i'm having problems with my ac it blows hot air all the time now and the engine is a little hotter than normal but is not over heating it is running at 210 and blows hot air even when i run the ac the coolant was low so i put more coolant in but this didn't fix the problem i think the raidator needs to be flushed i just wanted some advice on what to do