Defrost mix not working
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Junior User
Joined: Sep 2007
Posts: 74
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Hhmm i may not be searching the right thing but everything i see os related to temp controls. Thats not my issue though. Help please.
Laughing Gas
Joined: Dec 2009
Posts: 799
Likes: 13
From: East L.A.
I agree, the blend door is likely at fault.
If you have the "auto" climate control there is a self test that can give you some problem codes.
https://www.ford-trucks.com/forums/986532-2008-eatc-self-test.html
If you have the "auto" climate control there is a self test that can give you some problem codes.
https://www.ford-trucks.com/forums/986532-2008-eatc-self-test.html
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Junior User
Joined: Sep 2007
Posts: 74
Likes: 0
I dont. Mine has the manual *****. After checking again this morning, it does blow out somewhat, but its very weak. I know it will be weaker on mix mode than if it were on full defrost, but I have to set my fan speed to max before you can even feel it blowing through the defrost vents up top, whereas the floor portion of the mix is fine on any speed. I should have mentioned I have the manual controls. Also it is an 05 FX4 if that matters.
Thanks guys.
Thanks guys.
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Plus 2 on blend door. It is electronically actuated and is well known to crap out. I have had at least three replaced on my '06. Never doen it myself, but believe it not to be difficult to replace yourself. does not take the Ford shop techs long at all to complete. all in knowing the secrets I guess.
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Would not hold my breath, but was told once (by dealer) to try disconnecting the battery to reset the system prior to replacement. This potentially could allow the actuator to reset itself. Still think you will need a replacement, but no harm in giving this a try.
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Fleet Owner
Joined: Mar 2012
Posts: 26,155
Likes: 4,149
From: Near Cal. Avenue
U have 2 doors, one for degree of heat and one for position of heat. Check your 2nd option. The third door is for Air Conditioning.
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Fleet Owner
Joined: Mar 2012
Posts: 26,155
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From: Near Cal. Avenue
Let's try this.....
Click this bar to view the full image.
They are hard to see since the power pedal motor/plug is in the way. not the easiest to get in there with your fingers and a wrench let alone a camera! The bottom motor controls air to panel/defrost/and floors.
Click this bar to view the full image.They are hard to see since the power pedal motor/plug is in the way. not the easiest to get in there with your fingers and a wrench let alone a camera! The bottom motor controls air to panel/defrost/and floors.
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