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Blend door actuator is good, post for cam arm is not


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So I'm finding several surprises in the used 2013 Edge that we bought for my daughter to take to school.  The latest is with the AC blend door on the passenger side.  I did the typical resets to get the passenger side actuator to recalibrate and could hear the motor cycling, but that didnt' fix the issue to I opened up the glovebox to take a look.  The actuator works fine, however I found the cam arm (white L shaped plastic arm that connects to the arm from the actuator) was not connected to the side of the housing.  The black post in the middle appears broken off (still in the cam arm) and there is a hole in the side of the housing where some jackweed had shoved in 4 zip screws.

 

This pic is from a good unit, but the D shaped stud in the middle of the top white cam linkage (in the red circle) is what is broke off close to the housing.

image.png.b3f747dfda43d0283f1d7d7b07bbe528.png

 

So here is my question.  The post is D shaped which would indicate to me that the cam arm doesn't rotate on it freely.  Is this post attached through the housing to something else that needs to move (I believe the blend door itself is attached to the cam on the other end of the metal arm)?  My inclination is to try to epoxy the post back on or to reattach it to whatever is inside the housing but I am having a hard time finding any diagrams or drawings of what the actuator actually attaches to.  There are plenty of diagrams of how to attach the actuator motor to the arms...but nothing on the arms and what they attach to and operate.  Any insight or visual aids would be appreciated.

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The more I dig into this, the more I see that this is all part of the Evaporator Housing assembly.  I"m assuming there is a door on the inside that the shaft attaches to.  I"m guessing I may have to get creative to reattach the shaft to the door OR replace the whole evaporator assembly which means a dash tear down and big bill from the mechanic.

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Welcome to the Forum, pagraber!

 

The Edge Workshop Manual lacks detail on the several blend doors which are provided inside the Evaporator Housing assembly, as you mention...

 

Link to this FordParts page...

776844400_2013EdgeEvaporatorCoreandHousingAssembly-FordParts.thumb.jpg.359fbafba9a7f83abcf9b2332ec08ab9.jpg

 

1929525532_2013EdgeEvaporatorCoreandHousingAssembly-Image1-FordParts.thumb.jpg.889bef316cc2f3653a1e5daeadf98c8a.jpg

 

861695495_2013EdgeEvaporatorCoreandHousingAssembly-Image2-FordParts.thumb.jpg.950c9035e54feeff89e4d2fd2ae7a70e.jpg

 

Ideally, there's  some irregularity to stub's breakage that will orient it properly to the blend door's rotation, and that the remaining blend door shaft protrudes sufficiently outside the housing to safely allow supergluing the two back together. You may want to try to assess if anything has worked its way through the housing and is presently blocking the blend door

 

Ford's service labor time standard shows 5 hours for Evaporator Housing replacement. Link to in-progress photos of Forum member Omar302's past repair, showing laid-open dash .

 

If you'd like to research a salvage yard replacement, the Car-Part.com search engine may provide some options in your area...

 

image.png.700c754d6202fd4d854631f8a2608aea.png

 

In my area, used Evaporator Housing prices ranged from $100 to $250, in case you need to reduce the total repair cost.

 

Hopefully, reattaching the broken-off stub will solve the problem.

 

Good luck!

 

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