Where and how many blend door actuators are there?

Hello, if you have different temperature controls for drivers side and passenger side zones, then there is a temperature blend door actuator for each side - two. If there is a single zone, then one. Additionally there will be a mode door actuator to shift air flow to different areas - dash defroster vents, dash panel vents, and floor areas. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops