Quote: Well, changed my t-stat today. Used my vacuum tool to pump down the coolant system. Guess what? Sloshing in the dash is GONE!
I would still love for you to explain how that has anything to do with water sloshing in the dash? only water running through the dash is in the heater core. unless it's leaking into the heater box there is no way it can slosh. your intake or thermostat has absolutely nothing to do with it. if you have not run it in a while the leaking water could have evaporated or leaked out. sometimes on your carpet.
