Freightliner of Hagerstown MD Repairs Hagerstown Maryland

They start with 2 hour minimum diagnostic and they'll give an estimate on time and money, once done they re diagnosed and find more work to be done , and it keeps going and rotating through shift of counter and mechanics for so far 3 days and problems keep appearing, ,, the question is if what was fixed didn't solve the problem that mean they fixed something that didn't need fixing , so far 3 items and $$4k$$ later and 4 days later the parts and service clock is still draining my blood ,,