flushing a heater core

lol

As a matter of fact, it didn't hit me until you just said it, but i found three, big empty bottles of stopleak in the trunk when I bought the car. :banghead:

Hmmm that probably explains why my heatercore got stopped up and now the radiator pouring steam out of the radiator.

Someone suggested that the thermostat may be causing this. I am sure that stop leak could have jammed my thermostat shut, too.

I wonder if stopleak ruins waterpumps. I ran the car today without the radiator cap on to see if I could see flow and the coolant in the radiator remained stagnat. I put the cap on, ran the car for a few minutes, took it off and found the same thing.

Thanks for all the help guys!