About a mile from home the check gauges light came on. The water temp was at about 3/4. I turned the heat on but it was just blowing cold air. Then the temp pegged out. There was a boom and coolant sprayed on the windshield. Found that the hose had separated at the cap. Could it be the thermostat failed to open causing enough pressure to blow the hose apart? I have'nt noticed any coolant leaks. I had replaced the thermostat about 6 months ago with a 160 degree one. I plan on flushing the system, and replacing the stat and hose. Thanks in advance.