If you head to AutoZone, you can find blend door actuators for sale that you can use to replace the part on your own if you're so inclined. In some automobiles made prior to the 1980s, the blend door may have been actuated by a metal cable that was connected directly to the temperature control lever on the dashboard. Get Yours Today! In most cases, you'll get this noise when there is a problem with those plastic gears inside the actuator. This will be most prominent when you turn on the AC, or try to adjust the temperature and intensity settings. Remove the screws and lift off the blend door actuator. 20% off orders over $100* + Free Ground Shipping** Online Ship-To-Home Items Only. All Rights Reserved. As of 2012, the heating and air conditioning systems in most vehicles share many parts, including the temperature control on the face of the dashboard and the duct-work behind the dashboard. We all know the dangers of leaving pets in a locked car on a summer day, but we don't often consider how dangerous it can be when we're still in the car because the AC is typically running. Your best bet is to get some recommendations from friends and family about who's going to give you the best service for the best price when it comes to a job like this. An actuator is responsible for moving the blend door when the temp is controlled. The cost of getting this job done in a common vehicle like a Toyota Corolla is obviously going to be a little bit cheaper than what you're going to have to pay if you're driving around in a Bugatti Chiron, for instance. The blend door actuator itself is a very small plastic box. This is due to the actuator being buried within the heat and air assembly behind the dashboard. Actuator is basically another word for motor. We have the best products at the right price. Once the vehicle warms up, the blend door may be moved to divert only part of the heated air into the cabin. It's working in a cramped space, with a lot of small parts. These air conditioners were totally separate from the heater, and like early heaters, were mounted conspicuously under the dashboard. If you're hearing a sort of droning or squeaking repetitive sound from somewhere within your dashboard around the Center area, in the more or less general area that you are control knobs for the HVAC system are located, that's a good sign there's something wrong with the blend door actuator. The blend door is called a door because it really is just a flat panel of plastic. That's a pretty standard indication that there's a problem with the blend door actuator. Here is how you can recalibrate the blend door actuators RE-CALIBRATING ACTUATORS When replacing the HVAC control module it will be necessary to allow the HVAC control module to perform a calibration process. These gears are just plastic after all, and they are subject to some wear and tear at a much greater frequency than metal gears would be. Your car may have more than one of these if you have the ability to control the temperature in different zones. HVAC Blend Door Actuator - Repair or Replace If air is coming out of the wrong vents or at the wrong temperature, or if you’re hearing a strange rhythmic clicking noise from your dashboard, your Toyota Highlander may have a failed blend door actuator. A blend door is mounted within the heating and air conditioning system and pivots to divert warm or cool air into different passages within the system to keep the passenger area at the desired temperature. This is part of your car's HVAC system. It's always in your best interest to double-check that you have the exact right part you need before investing your time and money and getting it.Â,  A blend door actuator is one of those parts that most of us have no idea is even included in our car anywhere. Number Of Mounting Ears: 3. Where is the blend door actuator located? The cost of replacing a blend door actuator is typically between. While this may be a major job, it can be accomplished by a backyard mechanic with a shop manual particular to the vehicle and regular automotive tools. To replace a part within this complex system requires removing many other parts first. The thought of trying to troubleshoot the mass of wires, hoses and duct-work under your dashboard to fix the problem may be daunting. That's a pretty standard indication that there's a problem with the blend door actuator. Those are the clearest indicators that the actuator is the source of your problem and not the cooling system itself. AutoZone has the right blend door actuator for your car’s AC system. An actuator can be powered by vacuum or by a small motor mounted within the heat and air assembly. You never want to get a part like this if it wasn't specifically for your vehicle because it simply won't fit and then you'll have a part for no reason that you can't use. It's about as low-tech as your car can get, where the actual technology is in the actuator itself. In a vehicle's heating and cooling system, the blend door actuators help control the air temperature from the vents, and direct air to selected vents. Noise: If you're hearing a sort of droning or squeaking repetitive sound from somewhere within your dashboard around the Center area, in the more or less general area that you are control knobs for the HVAC system are located, that's a good sign there's something wrong with the blend door actuator. A blend door is mounted within the heating and air conditioning system and pivots to divert warm or cool air into different passages within the system to keep the passenger area at the desired temperature. Blend doors move by way of a mechanical device referred to as an actuator. As you adjust the temperature up and down, or the intensity of the air flow, the signals go through the actuator. As with any repair cost, the make, model, and year of your vehicle will have a big impact on just how much you're going to pay. Since this is just a small electronic part, this won't be unheard of. Luckily, on AutoZone you can easily organize parts by the make, model, and year of your vehicle so you know you'll be getting the right one. It helps control the temperature and air flow within the vehicle. As you adjust the temperature up and down, or the intensity of the air flow, the signals go through the actuator. Years ago, you just had to test your luck when it came to mechanics if you didn't already know what kind of service they provide. How does the blend door actuator work? As a result, it's not something we can easily identify as a problem when something goes wrong with it. Your car may have more than one of these if you have the ability to control the temperature in different zones. If you put the switch ALL THE WAY to hot, the blender door (usually an actuator) pushes the door up and allows only air passing thru the heater core to enter the cabin. When cool air is desired, a blend door is closes so that no heat enters the passenger area. If your blend door actuator has gone bad in some way, it's basically one of two problems. With both systems being combined, actuator-controlled blend doors regulate the temperature of the conditioned air and route it to its desired location. When a vehicle is cold, you may desire maximum heat to enter the passenger compartment. For most vehicles you'll need a 5.5 mm socket set to get this job done, and you'll have to be comfortable taking the dashboard of your vehicle apart. It's up to you to decide if you want to risk it or not with general information or wait till you find the specific instructions for make and model. : If the blend door is moving back and forth, then the airflow will be diverted incorrectly or maintained incorrectly. Blend Door Actuator-Replaces for 89018365, 604-106, 52402588, 52402612, Compatible with 1994-2012 Chevrolet, Chevy, Silverado 1500 and 2500 Air Door Actuator HVAC Blend Control Actuator. Unfortunately, if you have a more obscure vehicle than something like a Chevy Silverado or a Toyota Camry, you may have a hard time finding the exact walkthrough that explains how to do this job on your own. This is an unusual symptom, but if you're experiencing this, it's almost definitely a problem with your blender actuator. As with any repair cost, the make, model, and year of your vehicle will have a big impact on just how much you're going to pay. The blend door actuator is an electric motor that exhibits sensors attached to the climate control system of the vehicle. Whenever there’s a problem with the A/C system’s temperature, it … An air blend door needs precise control.  As you no doubt if you noticed, even within the same town the fees charged by mechanics for the same job can vary greatly. Electric stepper motors that have many positions (0 – 255) are used to achieve this control. Dorman OE Solutions 2 Terminal Blend Door Actuator Part #: 604-038 Line: DOR. This isn't the most complicated repair job by any means, but it's not necessarily the simplest one either. There should be controlled by some plastic gears that are responsible for moving the blend door where the actuator sends the correct signals. The cost of getting this job done in a common vehicle like a Toyota Corolla is obviously going to be a little bit cheaper than what you're going to have to pay if you're driving around in a Bugatti Chiron, for instance. If you head to AutoZone, you can find blend door actuators for sale that you can use to replace the part on your own if you're so inclined. Mechanics in a place like Beverly Hills are typically going to charge more for some repair jobs then you'll have to pay in Grand Rapids, Michigan. Good evening. Could be a blender door issue. . The blend door actuator is a small electric motor that features sensors connected to your car's climate control system. I was told that the blend door actuator is designed to fail in the heat wide open, which may of explained the heat**** 2005 F250, 196,000 Miles, Bullet Proof HD Oil Cooler w/ Cold Weather Kit, Bullet Proof EGR, Bulletproof Water Pump, … A blend door is a part of a motor vehicle’s HVAC system. The electric motor that powers the actuator controls the flow and blend of hot and cold air within the cabin by … Blend Door In general, the blend door is built within the pivots and air as well as heating conditioning system to divert cool or warm air to different directions inside the … If you can’t hear this change in air noise intensity there is a problem with the blend door actuator, the blend door, the climate control set or the circuit … , or try to adjust the temperature and intensity settings. When some autos are assembled at the factory, the entire dashboard, including the heater and air assembly, may be put together as an entire unit before being installed into the car. The blend door, which the actuator controls, is what diverts and controls the flow of air. This is part of your car's. You may not notice that the heat has stopped working in your vehicle until that first cold morning when you move the heater temperature control to its maximum setting. Most modern vehicles have the ability for rear passengers or front passengers to alter their personal climate, which means they'll have a separate blend door actuator for controlling that. This controls things like defrost as well as whether or not the air is going to come through the floor vents or the mid-level vents and so on. The system’s control unit does this by driving the actuator motor to a stall point and measuring a change in motor current draw or a lack of change in the … There are a couple of plastic gears inside, the electronics, and then the plastic case that houses the whole thing. One thing that has remained consistent over the years is that the heat source for an automobile heater comes from the engine coolant in most vehicles. Obviously you know that something controls your air conditioning and. You are working in a pretty confined space; you may need to get under your steering wheel up behind the dash to get this done. A blend door actuator is linked to an air control door pivot found on the last drive of the unit; a plastic gear set is frequently rotated from one side to another by the electric motor.An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks. As we said, this isn't an advanced repair job, but it can be considered somewhere in the intermediate repair range. When you're on the lookout for these symptoms however, it's a good sign that this is the exact cause that is behind the problem rather than something else. The temperature of the heat in modern vehicles is regulated by a blend door controlled by an actuator. This controls things like. When closed, the blend door blocks air from passing through the heater core, providing maximum … Definitely a problem with the blend door is a device that is in intermediate! Is one of those parts that most of us probably do n't a. A device that is in the unit, a heater was an and... 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