2004 dakota heater

I warmed it up with the rad cap loose then pumped it up to 10 psi and i'm afraid the heater core is leaking . the engineers who designed this should be tied to a tree and deep heat smeared over there nuts ,taint and asshole . the whole dash needs to come out the ac needs to be drained steering colum droped at least a dozen plugs unplugged and more im forgetting .