somehow my EGR valve blew a hole in it, I was able to drive it home with a lack of power, it would get up to about 40 mph, about 10 miles. No overheating no engine or oil light. After I replaced the EGR and restarted the car, it made a loud squealing from the water pump area and overheated. I changed the water pump and thermostat and still have the squeal and no power. I tried to drive it and it over heated and lost all power, would idle but would not go at all. after letting it set I was able to limp it home slowly. Any help would be greatly appreciated.