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blend door

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2012 GMC Sierra 2500HD No Blend Door Working
Hello, you are going to need a diagnostic chart for this type of issues. The chart gives you a process to a path of repair or replacement for each code. When you have many system codes you would first check...
Air only working in rear
The AC air blend doors on these vehicles, and on most GM vehicles, now have electronic blend door control solenoids that seem to go bad pretty often; this sounds like the problem you are having. I recommend that you have...
Getting hot air
Hi. There is an actuator that has a tendency to fail over time. The actuator is a small motor that will move the blender door depending on where the dial is positioned. It is possible that a linkage has broken...
Blend door and throttle actuation problems
The air conditioning on your vehicle is computer controlled. It has many sensors both inside the passenger area, pressure sensors on the AC unit, and external temperature sensors. If one of these sensors is giving the wrong information the system...
AC blows hot air driver side & cold on the passengers side
On vehicles with this type of concern, it is usually caused by a malfunctioning blend door or blend door motor inside of the air conditioning system. I'd suggest getting some help from an experienced technician who's capable of disassembling the...
The car is burning oil significantly
Hello. Thanks for writing in about your 2004 BMW 330xi. Unfortunately, this is very common for a vehicle to burn more oil as the engine ages. One thing you can do to combat the oil consumption is to use high...
Only get hot air in front
The front and rear blend doors are electronic actuators that will click when they are bad and cannot detect the position they are in. This is a very common problem and the front A/C and rear A/C can have different...
I have no heat no matter how I adjust the knobs
Hello. From what you describe it may be possible that the blend door actuators have failed. If it appears that they may have both failed at the same time, I would first check all of the vehicle's fuses or relays...
Based on the information you provided, it sounds like you have a temperature blend door that is not operating. It could be the actuator or the blend door itself. If you would like to have this verified, have a qualified...
can a heater core prevent, air conditioning, from blowing cold?
The heater core will not cause the A/C to not blow cold. If your A/C is working properly with the correct amount of Freon, then you may have a temperature blend door not working and staying on heat mode. If...
A.c. not turning on at all
The blower control blend door actuator on the evaporator case may be bad. Have the blend door actuator removed to see if the blend door can be turned by hand. Sometimes, the actuator breaks and other times, the blend door...
Blend door is stuck
The blend door in your SUV is controlled by an electric actuator. If the blend door itself is stuck, the actuator will still attempt to move it. However, the actuator itself is usually to blame. It will need to be...
Blend door
No. The blend door actuator changes air to flow over the heater core or the evaporator and in between. If the actuator is stuck in one position toward heat, then you may not get heat but only fresh air moving...
Air blend door problem
Air will constantly flow through the defrost vents regardless of the mode setting chosen on your Dodge Nitro. There are four different blend doors on your Nitro and they all direct air in different ways. Three of them are a...
AC question
You may have a bad temperature blend door actuator for the left side vents. You should also have the complete system checked to make sure you are not low on Freon since the left side will be warmer than the...
When I switch from heat to AC, the heat still blows?
Hi, thanks for writing in. If your heat is still blowing when the air conditioning is turned on and the compressor is working, then it is likely that the blend door actuator has failed. The blend door actuator is responsible...
AC line cold, no AC blowing in car; heat blows really hot, only all lines have been replaced and fuse checked good
Hello. It is possible that your blend door actuator has failed. This is the part that controls your blend door. The blend door is responsible for blocking off the heater core when your A/C is on to prevent the hot...
AC blows hot in the front, cold in the rear
Hello. It sounds like the blend door actuator is failing. This door is responsible for blocking off air flow to the heater core when the air conditioning is on. I would recommend having the blend door actuator tested using the...
Problems with the Driver's Side Blend Door Actuator
Turning the actuator to full cold will not find the problem since the actuator internal sensor is bad and cannot control the motor and then will default all the way to heat. You can replace the actuator and run the...
resetting blend air actuator
The a/c door actuators do not need programming. I think what happened is the door was in the incorrect position when you put in the actuator. What you need to do is remove the actuator and leave the actuator electrical...

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