Originally Posted by martyfa

Finally fixed my issue of only blowing hot air. Whether the temp controls were on blue or red it would only blow hot and no AC. What I did was take the aluminum caps off the coolant circulation valves which are located directly behind the overflow tank, careful not to drop any of the 5 screws. After lifting the caps off I lifted the yellow wrapped magnets off of the valves, which is one piece and then cleaned the base that the magnets sit on. I pulled the valves out careful not to lose the springs sprayed them with a lubricant and reinstalled. Put everything back together and now I have AC and control of my cabin temps.