70duster 360 gets hotter the faster i go

your half right about the warming up part once it reaches temp it opens allows coolant to circulate thru the engine then closes so that the now hot coolant can stay in the radiator so it can be cooled by the fan/air. if the coolant circulated continually how would it ever get cooled off?

You're.....lol it does not close. How would it close if it opens specifically when the water temp gets to the temp above the thermostats rating? IF the water is always above the thermostats rating, I would think that means the thermostat would be forced to be open. no?


and Rusty you are correct lol. When my car started to have the same issues as curt, first thing I did was search threads and it always turns into pissing matches of who does what and he said she said.