The blend dial on the dash does not direct air/heat to where it should go.It seems something is stuck.Where do I start looking to fix this problem?The blend dial on the dash does not direct air/heat to where it should go.It seems something is stuck.Where do I start looking to fix this problem?
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it's not a valve it's a blend door or blend door actuator under the dash that switches the way the air is handled in your vehicle. I would start by removing the fan motor in the passenger side foot well and make sure the fan is clear of all debris. then you should be able to switch cold to hot on the dash and hear a door change the direction of the air inside the box in your dash. if that blend door is not working properly then you will need to see if there is a blend door actuator http://www.youtube.com/watch?v=AKA3LLFreTw
The air temperature blend door is jammed and this is causing the blend door motor to "skip". REMOVE THE DASH ASEMBLY AND REPLACE THE BLEND DOOR AND THE ACTUATOR.
Hopefully it's the switch behind the dash. I would try replacing your selector switch before messing with the blend door. You have to pull the dash out to access the blend door
if the heater hoses are both hot its a blend door actuator, and possably the blend door its self, the way to make sure is to feel around under the dash . feel the black hvac box and if its feels warm then the heater core is good, you will have to remove the dash to replaced the bland door actuator and blend door ,i reccomend you replace both beacause its alot of work to remove the dash so make sure both components are replaced while you are in there
There is a blend door that is know to give problems. Sometimes the blend door itself will break but there is also a blend door actuator that can fail. The blend door actuator is located behind the dash...kinda behind the temperature control knob and is a pretty easy fix if you're able to hang upside down under your dash for about 20 minutes. The actuator costs around $50.
I've never replaced the blend door itself, but have read up on it when I thought that might be the problem. Let's just say the part is cheaper but clear your weekend. I think step one of building a Taurus is the blend door....it's buried in there.
Hope this helps.
The control module or actuator is most likely the cause. You can manually set it for cold air until winter. Actuator is under the dash right by the blower.
most likely needs a LH (bottom) temp actuator. Located in the center of the dash on the bottom, you have to remove the hush panel on the rh side of the truck
it is called a blend door acuator problem. it is what moves the door from hot to cold or vice versa. it is usually way up under the dash and is very hard to get to.usually requires dash disassemly. do yourself a favor and take it to a mechanic. it will save you $$$ in the long run.
The blend dial on the dash does not direct air/heat to where it should go.It seems something is stuck.Where do I start looking to fix this problem?
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