heater blows cold

Hey, I got a 1995 Ford Explorer Eddie Bauer edition. when I turn the heat on high, it only blows cold air. I replaced the blend door actuator, and the tubes to the heater core are hot all the way to the firewall. the heater control valve bypass seems to be working and the engine is full of...

Hi; This is my first post to the explorerforum site, so please forgive me if I am beating a dead horse, or starting in the wrong location, thread-wise. My '96 Explorer XLT, with 205,000mi. on the clock went from blowing lot's of heat into the cabin to blowing zero heat, overnight. I checked...