Any ideas of what is stopping my heat? I am having the same issue with my 99 Avalon. I have flushed the heater core, unhooked the water control valve and opened it manually but still no heat. I can't move the cable from outside nor will it move with temp control knob. I found a control unit in salvage yard no change. All buttons on both control units seem to move to correct positions but hot air no idea what to try next.?
Saturday, November 17th, 2012 AT 5:27 AM