The symptoms of a bad blend door actuator include a lack of heat or air conditioning, or failure of air to blow through some or all of the vents. The actuator motors may also make a noise if theyve failed, but this isnt always the case.
Secondly, what does a bad actuator sound like? Youll notice is makes a popping noise when it is commanded. The popping will persist for a moment. Of coarse the actuator does not achieve the commanded position. Though only the recirculation door actuator is featured in the video other actuators in the heating and a/c system often fail in a similar fashion.
In this way, how long does it take to replace a blend door actuator?
one to two hours
How do you fix a blend door actuator?
Heres how. Consult the repair manual to identify which actuators control the defrost-vent-floor “mode door” and the temperature-regulating “blend door.” Then peer under the dash and locate the suspect actuator on the heater box. Have a friend switch between modes or temperatures while you watch the actuator.
