Hello I need some help. I picked up a 2005 Honda accord LX four-cylinder base model Not dual climate. All the vents on the right blow hot and all the vents on the left are cold.I checked all the actuators and the doors are opening and closing properly. I flushed the heater core and replaced the temperature control lever under the hood. I brought it to Honda for a few open recalls and they had no idea.actually they suggested flushing the heater core and I had them do it. When I turn the AC on the cold side gets colder but the hot side stays hot. Every once and awhile the cold side will get warm for a few minutes but then gets cold again. And help would be grateful Thank you. And yes it has antifreeze.