Hello I am having issues with the fans not coming on while driving at highway speeds. I drive an hour and half one way every day commuting back and forth to work. And at @ and hour into the trip I have to override the fans to keep temps down to 215 f. As soon as I slow down to 55 or so the fans will then come on and cool down. I have replaced radiator and water pump and thermostat. Only thing I can think of is because I have an intercooler up front and outside temp is @ 115 f every day on my trip home. Also this does not happen in am as temps are @80 f. Any help would be appreciated



8-11-16.hpt


2010 silverado ls2 twin gt3582r