silly rabbits, blend door actuators control hot and cold or the mix of air. only...why its called a blend door actuator.....
your flow direction is vacuum powered from the engine. line runs off the intake manifold to the firewall down the fender under the fuse box, look for it to be busted. battery change can snap the line easy.
cant find a busted line under the hood, your off to climate control or the vacuum box in the console near the firewall.
or rarely, the plastic linkage in the dash breaks all by its self.
