I had the evaporator coil replaced and four days later while parked and idling (less than 5 minutes) it idled high and low, high and low then died, when I restared it the a/c was not blowing at all through the front vents and not cold air in the back. IF I have the dial turned to any of the options no air comes out of the vents, or floor, or dash, however if i have it on one of the non-circulation modes once i start driving very cold air "seeps" out. No cold air at all from the rear. ALSO if I am idling at a stop light for more than around 3 minutes the temperature rises and the dummy light dings and comes one. Any advice is much appreciated, thank you in advance.