I am still running without the fan. I havent had any issues until the past couple days. My expansion tank busted, I am now trying to find a mysterious leak and determine why I have to run the heat on full blast or she goes into the red. I am also lossing fluid pretty quick. No white smoke from the exhaust and she drives fine with no power loss. I am having a hard time convencing myself it could possibly be a head gasket. No white smoke??? any inout from anyone??