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.?
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Saturday, November 17th, 2012 AT 5:27 AM