I have a 2014 Viking that just started to over heat. Fan was stuck. (Radiator was spotless never any mud) I have put on a high output fan, jacked front up and bled the system.(according to the threads I have read) It still was pumping coolant into overflow and out the overflow. Put thermostat and fan sensor in, bled the system again. (Several times) Still over heating. Checked water pump and looks good. No water in oil, no steam out exhaust, no leaks. Waiting for tool to check compression but with the compression release I am not sure if I can get a good reading. Can anyone give me any advice ? I have read all the threads about over heating issues and the only thing I can think is the head.