I have an 86 Syncro. It is getting warmer = outside and my radiator fan does not want to come on. It only comes on when it is = freezing outside and therefore, keeps the cooling system sooooo cool = that I don't have any heat. Now that it is getting warmer, it doesn't = come on at all (plenty of heat to spare in the cab)and I'm afraid of it = overheating. Can anyone please tell me how the radiator fan circuit works? I = cannot find anything on it in the Bentley.