To me it does not make any sense that it would be an intake gasket... But, like I have posted before though- I am new to the Triton world, and some engines do run coolant though the throttle body and the plenum. Im thinking engine manufacturers do that do the warm up gas mileage is better. Usually you can re-rout the lines to bypass the intake all together and it will even let the truck get cooler air. You will just have to let your truck warm up a little longer before driving for gas mileage. Anyways, run your coolant lines... maybe your thermostat is stuck and it forcing that water out on the housing or near by.