HVAC Blend Door Actuator Replacement CostHow Much Does a HVAC Blend Door Actuator Replacement Cost?Learn More About HVAC Blend Door Actuator Replacement Cost In addition to improper temperature and/or air flow output from the dash vents, you may also hear a clicking noise from behind the dashboard.Depending on the vehicle the replacement of the Blend Door Actuator will require the removal of the dashboard. This adds considerable labor costs, increasing the overall price of this repair.Home Articles How to Replace a Blend Door Actuator How to Replace a Blend Door ActuatorDo you hear a ticking noise from your dash when the ignition key is on? your car heater blow cold or the air conditioner blow hot? These are signs that a blend door actuator has gone bad. With a little help from our team of ASE certified mechanics and about a half hour of your time you can replace this part to get your climate control back workingOr you can see what you are paying for when taking your car in for

A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit. An actuator can go bad in of two ways; first the electric motor can burn out rendering the unit non-responsive so nothing changes when the temperature or vent mode controls are moved. Next, the plastic gear set will become brittle and break which will sometimes allow the unit to work while making a ticking or clicking noise and then stop. This is a common problem in most car's heater and air conditioner How Does It Work? An air blend door actuator is constructed from a plastic housing, a small electric motor and a plastic gear set. A door position sensor is also incorporate into the unit to send feed back information to the climate control computer. This actuator then moves temperature and air direction doors inside the heater plenum (box) which are designed to control mode settings such

as temperature, floor, mid vent, defrost and fresh air or re-circulation modes. They also control hot and cold settings for right and left passenger compartments. Your car's climate control computer gives an electrical command to the actuator to start moving the actuator motor to change air direction modes. This direction is according to the temperature chosen by the driver or passenger on dual climate control Most systems have three to four of these units placed in various areas around the HVAC plenum that control mode operation and will vary by the car make and model. You can get an OEM replacement actuator from Amazon for what the garages pay for them in most cases. You will need a tool set including an 5.5 mm socket for Chevy, GMC, Cadillac, Ford and Lincoln vehicles. Step 1: Remove the Lower Dash Panel or Glove Box Using a small socket and ratchet remove the mounting bolts that hold the under dash plastic cover on the passenger side.

These screws can be in obscure places so look around for them. Once you have located and removed all of the mounting screws grasp the cover and gently pull it from the underside of the dash. This will expose the heater box with various controls including any wiring. Here is what it looks like when the glove box is removed exposing the blend doordouble exterior doors with sidelights Step 2: Remove the Door Actuatorupvc back door hinges Here is a typical right side temperature actuator used for dual climate controls (also temperature for signal mode units).garage door installation fenton mi This actuator hangs below the box which is one of thecar window repair amarillo tx

easier units to replace. Begin by using a small screwdriver to release the wiring safety clip on the harness for the actuator. These clips can be brittle and break so be Once released gently pull down on the wiring connector and remove it from theInspect the connector for rust or corrosion and clean as needed.garage door repair north haven ct Step 3: Remove the Actuatorschlage door handle with lock Locate and remove the actuator mounting screws. There should be two or three screws holding it in place. A small universal might be needed to help remove the screws in awkward places. Once removed place the screws into a small container so they don't get lost. Once all of the mounting screws have been removed the actuator should become loose. Grasp the actuator and pull it from its mount to remove.

Step 4: Turn the Air Door Pivot Before installing the new actuator it's a good idea to manually turn the blend door in both directions to ensure it is not stuck which will cause the newGrasp the door pivot and move it back and forth to its full travel, it should move freely. If you cannot move the blend door an obstruction has gotten in the way of the door movement which will make the new actuatorThese obstructions can include: pen, tooth pick, small toy or bubble gum to nameIf the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. To test the blend door operation and too double check that you are changing the correct actuator motor turn the blower motor on and work the door in each way. You will be able to feel the air change temperature or vent level. Step 5: Match the New Actuator Compare the bad actuator to the new unit. Be sure to check the wiring harness connector terminals they should match identically.

part is ready to be installed. Step 6: Install the New Air Blend Door Actuator Install the new part in place as you insert the mounting screws by hand. Be careful not to cross thread the mounting screws because they thread into the plastic housing and can easily strip, (do not over tighten). Once all screws are in place firmly push the wiring harness connector backYou should hear a click signaling the correct installing of Step 7: Reinstall the Cover or Glove Box After the installation is complete double check your work and reinstall theThis can take some jostling to get the bolts holes lined up so Once the cover is in place start the installation of the mounting screws by hand, once hand threaded install the remainder of the screws. Do not tighten the first screw you have threaded in until all of the screws because it will make the remainder of the screws harder to After cover has been re-installed start the engine to test the repair job by

turning the climate control on and moving the controls from hot and cold and from defrost to the mid and floor positions to ensure the new actuator is working as it should. Here is this job being done to pick up on additional tips and information before you begin. Blend Door Actuator Locations Begin by identifying the problem either defrost, mid or floor, or temperature modes not working. Then locate and identify the actuator to be replaced. These units can be either hanging in front of you or in a little more obscure places such as on the side theSometimes they can be located in inconvenient places like the top of the heater box. These repairs can take a little longer because more parts need to be removed to gain access to the actuator. You can use a repair resource such as Mitchell1, a paper manual found on Amazon or a resource like Google images to locate the particular area in which the actuator needs to be replacement. Here is an example of a Silverado, Suburban and Tahoe locations.