Thanks again for your great explanation! I installed a new air compressor and still noticed the pressure build up in the cooling system and no air...
While on the road, my upper radiator hose literally blew up. I replaced it and it happened again. Installed a 3rd hose and trying to figure out...
Erkan978 where you able to figure out the problem and take care of it? I've got the same issue with my volvo truck. I have no idea about the cost...