Blend Door Replacement
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Give me coffee - Or beer!
Joined: Aug 2003
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From: Who cares?
Blend Door Replacement
Well, with the help of documentation found here in this forum I removed the dash board and everything required to get to the blend door. I didn't have a replacement and my job or my daughters school allows us to work on the truck during the week. All I was going to do was remove the blend door or put it in HOT always. Well I got it backwards and it is in cold always. Have to do the job again next week. But does the blend door assembly come out as a unit? According to my Chiltons it does so you can replace the heater core. But I gave it a little tug and it didn't want to slide up. Is there a catch or some kind of clip I couldn't see? The job was not too bad. Lots of places where you have to work upside down and I hate laying half way into the truck to get under the dash board. The company that diagnosed the problem in the first place apparently broke a lot of the plastic tabs that hold the dash pieces in place. Not to mention the big *** crack in the dash cover. Taking this all apart I found so much broken that I am ready to throw down on those clowns. Car Care in Lake Jackson is the most inept group of "professionals" I have ever run across. Start hating them now so you can avoid the Christmas rush.
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Joined: Apr 2007
Posts: 73
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From: Philadelphia, Pa.
Blend Door Problem
Your problem sounds like the common blend door problem on the Ford Expeditions, and Ford Explorer. The door is on a vertical axis and when it breaks, it can swing back and forth randomly giving heat or AC or nothing. The difference on acceleration is the force placed on the door swinging it one direction.
You can check the operation by fully opening the glove box, removing the actuator motor on top of the plenum box and examining the blend door axle. Pictures of the common fail signature are available on the heatertreater.net web site. There are several "free" fixes that mostly are worth what you pay for them. The solution on the web site is solid and proven over hundreds of vehicles and will resolve the problem once and for all.
Your problem sounds like the common blend door problem on the Ford Expeditions, and Ford Explorer. The door is on a vertical axis and when it breaks, it can swing back and forth randomly giving heat or AC or nothing. The difference on acceleration is the force placed on the door swinging it one direction.
You can check the operation by fully opening the glove box, removing the actuator motor on top of the plenum box and examining the blend door axle. Pictures of the common fail signature are available on the heatertreater.net web site. There are several "free" fixes that mostly are worth what you pay for them. The solution on the web site is solid and proven over hundreds of vehicles and will resolve the problem once and for all.
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Give me coffee - Or beer!
Joined: Aug 2003
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Likes: 7
From: Who cares?
All is well with the world. Well the blend door anyway. The job was actually easier than expected. I documented the crap out of it so I can put it all together with lots of photos. There is one other like that somewhere in this forum which I was able to use. There are a few differences but nothing major. Any way, thanks to those who have gone this way before me.
Oh, al52269, the actuator is under the unit on top of the hump behind the flexible black plastic cover. It is on top of the unit, behind the glove box in the 2002 F-350 though.
Oh, al52269, the actuator is under the unit on top of the hump behind the flexible black plastic cover. It is on top of the unit, behind the glove box in the 2002 F-350 though.
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