hi guys, i have a 850t that wont stop fogging the windshield when not in the higher speeds of the cab blower especially when humid or wet outside. i have pressure checked the cooling system< checked all drains and there is no coolant from the heater box drain. i do not smell any coolant in the cab when this happens or at any time. im stomped. any ideas???? bruno

 

Is the condensation on the inside or the outside of the windshield?