2008 ISUZU I-370 Engine And Engine Coolingcooling System Problems

MY ENGINE LIGHT IN MY 2008 370 SERIES TRUCK, KEEP COMING ON. SEVERAL ATTEMPTS BY THE DEALER IN MORGANTOWN, WV HAVE BEEN MADE TO REPAIR THE ENGINE BUT TO NO AVAIL. I ALSO CALL THE ISUZU CORPORATE HEADQUARTERS IN CALIFORNIA, HOWEVER, I HAVE NOT RECEIVE ANY RESPONSE. I PURCHASE THE ISUZU TRUCK IN ALBUQUERQUE, NM BEFORE MY RELOCATION TO MORGANTOWN WV. THE DEALERSHIP IN MORGANTOWN, WV STATED THAT NO ONE HAD BEEN TRAINED TO WORKED ON THE ISUZU 370 SERIES, HOWEVER, THEY HAVE MADE SEVERAL ATTEMPTS TO REPAIR IT. IF THEY HAD NO ONE TRAIN TO WORK ON MY TRUCK, HOW CAN THEY REPAIR IT. IT MIGHT JUST BE POSSIBLE THEY COULD HAVE CAUSE MORE PROBLEMS. MY TRUCK HAD BEEN AT THAT THE DEALERSHIP FOR THREE (3) WEEKS WITH THE ENGINE TORN APART. THE DEALERSHIP HAD NOT EVEN OFFER ME A LOANER. MY WIFE AND I HAVE BEEN GOING BACK...