Hi all.. I recently bought a 91 trooper 4ze1 after someone totaled my 88. Anyways, about a month and a half after I bought it the heater core started leaking like mad.. Coolant all over the floor. I did a lot of searching and found a used replacement at a junk yard and installed it my self.

Now, about one month later, all the sudden last night tons of coolant starts spurting out of the floor vents!

What's going on here.. is there something that can cause such serious leaking like that or did I just get lucky and find another bum heater core?

Anyone know where I can find another one in the seattle area? Purchasing a new one is like $300!

Thanks for any help.