A blend door actuator is a small motor located behind the glove box in the dash of a vehicle. It is responsible for moving the blend door, which controls the blend of hot and cold air coming from the HVAC system. If the actuator is not working properly, it will not be able to move the door, and the air coming from the vents will be the wrong temperature.
The first step in resetting the blend door actuator is to locate the actuator. It will be located behind the glove box, on the left side of the dash. Once you have found it, you will need to remove the glove box. There are usually two screws that hold it in place, and they will be located on the bottom of the glove box. Once the screws are removed, the glove box can be carefully pulled out.
With the glove box removed, you should be able to see the actuator. It will be a small motor with a plastic housing. There will be a electrical connector plugged into it.
The next step is to unplug the electrical connector from the actuator. Once it is unplugged, you can remove the two screws that hold the actuator in place. The actuator can now be carefully pulled out.
Now that the actuator is out, you can take a look at the door that it controls. The door is located behind the glove box, and it is what the actuator moves in order to control the blend of hot and cold air. If the door is not in the correct position, it can cause the air to be the wrong temperature.
To fix this, you will need to move the door to the correct position. The door is held in place by two screws. One of the screws will be located at the top of the door, and the other will be located at the bottom.
Once the screws are removed, the door can be moved to the correct position. Once the door is in the correct position, you can put the actuator back in and screw it back into place.
The last step is to plug the electrical connector back into the actuator. Once the connector is plugged in, you can put the glove box back in and screw it back into place.
You have now successfully reset the blend door actuator on your grand marquis.
A different take: Actuator Controls
Can I reset the blend door actuator myself?
If your car has electronic climate control, the blend door actuator is what controls the hot and cold air mix. If this unit goes bad, it can cause the heater to blow only cold air or the AC to blow only hot air. In some cases, the temperature control will work fine, but the airflow will be stuck on full cold or full hot. In any of these cases, you'll likely want to reset the blend door actuator yourself.
First, find the fuse box in your vehicle and locate the fuse for the climate control system. This is usually labeled on the fuse box cover. Remove the fuse and inspect it for signs of burning or melting. If the fuse is damaged, replace it with a new one of the same amperage.
Next, locate the actuator. It's usually located behind the glove box or under the dash. Unplug the electrical connector from the actuator and remove the two bolts that hold it in place.
With the actuator removed, you should be able to see the door that it controls. There may be a plastic or metal rod attached to the door. If so, disengage it and move it out of the way.
Now you can see the door itself. There are usually two plastic pins that hold the door in place. Simply push in on the pins and the door will pop out.
Once the door is removed, inspect it for any damage. If it's damaged, you'll need to replace it. Otherwise, simply clean it off and reinstall it. Make sure the pins are in place and engage the rod, if present.
Now reinstall the actuator. Reconnect the electrical connector and bolt it back into place. Finally, replace the fuse and turn on the ignition. The climate control system should now work properly.
For another approach, see: Blend Door Actuator
Frequently Asked Questions
What are the symptoms of a bad blend door actuator?
If you hear a repeated light clicking sound coming from under the dash, it can be a sign that your blend door actuator is bad. This might cause hesitation in start-up and reduced fuel mileage.
How does a blend door actuator work?
When the driver operates the temperature knob or lever on the dash, power is sent to the actuator, causing the device to move the blend door in one direction or another.
What causes a blender door to make a clicking sound?
A faulty actuator can cause the blend door to be stuck in one position or another, resulting in an outlet temperature that’s hotter or colder than the desired setting. A bad blend door actuator may make a clicking sound when activated.
Can you drive a car with a bad blend door actuator?
Most likely, if your blend door actuator is not functioning correctly the air conditioning will not be able to work properly. However, if it’s a minor inconvenience you’re willing to deal with then you can drive your car. However, if the problem persists or becomes more extreme you should take your car into a repair shop to have it fixed.
Can you drive with a bad blend door actuator?
You can drive with a bad blend door actuator if the actuator is faulty and doesn’t close properly. The problem won’t prohibit you from driving, but it will make life inside the car more uncomfortable.
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