Ford Super Duty (1999-2016) :: 2006 - All Climate Functions Come Out Of Defrost Vents


Jun 7, 2013

It's a 2006 F250 Super Duty, 4WD AT, no auto hubs, 5.4L. All climate functions come out through the defrost vents. That mean when I'm using A/C it works, but comes out the defrost vents, or if it's a cold day and I want to use the heater it comes out the defrost vents. (So does defrost! LOL) Once or twice things went back to normal, but then, once when I had some cargo on the passenger's floor, I heard a hissing sound and it all went back to the defrost vents. Been there for a while now. Dealer wants to charge an arm and leg to look at it and then all arms and legs to fix it, and wouldn't you know it's not covered on my service plan!? Remember, these 4WD front hubs are not auto. I get the idea that to do anything under the dash means I have to disassemble the entire truck down to every last bolt.

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Ford Super Duty (1999-2016) :: 2006 F250 - Climate Control / AC Vents To Defrost And Blow Normal Air Through

I have a 2006 F-250 Super Cab with climate control. The last three years when the temp exceeds about 85 degrees outside it acts up. It will switch from the AC vents to defrost and blow normal air through, not ac cold. Then it will switch back, when doing so I can hear the internal deflector shudder. It will do this every few minutes. It is extremely annoying. All other times of the year it works fine. My local dealer had the truck last year, but could not find anything wrong. I have used the search and also Googled and while I find similar problems nothing exactly the same.

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Ford Super Duty (1999-2016) :: 2006 F250 - While Shifting Into 4x4 A/C Heat Blows From Defrost Vents?

2006 F250 with the dash controlled 4x4. I typically keep the front hubs locked on this truck. I have recently noticed that when shifting into 4x4 that the a/c or heat will switch from blowing out of the vents to blowing out of the defrosters. Any clues how to fix this?

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Ford Super Duty (1999-2016) :: 2006 F350 - AC Switches To Defrost Then Takes 2 Min To Return To Vents When Shift Into 4X4

2006 f350 DRW King Ranch diesel with 94,000 miles on it. When I shift in to 4x4 the AC switches to defrost and then takes 2 min to return to the vents. I imagine this is a vacuum leak issue. Where to start hunting? I pulled the dash for another install and all lines were connected. I will say the vacuum pump stays on longer than normal when the ignition is first activated.

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Ford Super Duty (1999-2016) :: 2012 - No Air Getting To The Defrost Vents

I have a 2012 super duty with a 6.2 in it. I bought it last winter and noticed no air getting to the defrost vents. Now in the heat, sometimes when I turn the air on, all I get is super hot air like the heater. Sometimes playing a bit will work but not always.

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Ford Super Duty (1999-2016) :: 2005 F250 6.0 - Climate Control In Defrost Mode All The Time?

My 2005 Ford F250 6.0 diesel CLIMATE CONTROL DEFAULTS TO DEFROST mode all the time now. For some reason I'll turn on the AC and it is either already in defrost or changes to it no matter what I do. Is the head unit in the dash the problem or is it a vacuum leak or an electrical issue?

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Ford Super Duty (1999-2016) :: No Air Blowing Out Of Vents Or Defrost For AC Or Heat

I have a 2008 F350 and there is nothing blowing out of the vents or defrost for AC or heat. It doesn't matter what fan speed is set. Would this indicate a blower motor? Where exactly is it located and how to change?

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Ford Super Duty (1999-2016) :: 2001 - Vents Stuck On Defrost

My 01 SD won't blow air anywhere but through the defrost vents.

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Ford Super Duty (1999-2016) :: AC Quits Blowing Out Of Forward Vents And Goes Into Defrost When Activate 4WD

02 F250 with 7.3. When I activate the 4WD, my light comes on, the A/C quits blowing out of the forward vents and goes into defrost and no 4WD. If I sit and wait a bit, the air again blows out the front vents and the 4WD engages. I figure I have a vacuum leak somewhere in the 4WD system. Is there a common place for this to happen or do I need to trace the whole system down? Also my manual hubs has never been turned and of course they won't. I know better than use a wrench so is there a easy way to free them up or just go ahead and disassemble and clean?

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Ford Super Duty (1999-2016) :: 2003 Excursion - Dash Vents Not Working - Just Defrost

Air is only blowing through the defrost vents. No matter what I do - try to turn vents, A/C, heat, fresh air, recirculating, etc. Assume it's a switch or fuse issue somewhere. How to fix it?

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Ford Super Duty (1999-2016) :: 2006 F250 - AC Changes From Vent To Defrost On It Own

2006 F250 5.4 - While driving ac changes from vent to defrost on it own..let off gas and it will change back to vent. I replaced vacuum can under hood.. no luck.....

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Ford Super Duty (1999-2016) :: 2006 F250 - A/C Has A Blend Of Defrost

I know there is a motor or switch that I can remember the name of that is in the dash somewhere that controls the Defrost and regular cabin flow. I am not good with A/C, and was wondering, what is the name of it, and is it something I can get to behind the glove box or is it very complicated?

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Ford Super Duty (1999-2016) :: 2006 Diesel F250 - Hot Air Only Through Vents

Last week I flipped the fan switch on and noticed that only hot air was coming from the vents, even with the control set to AC. The vent control switch seems to work fine directing the air but only hot air. The temperature control does not work. The exception is when I put it on max AC I get cold air. I can't be the only one.

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Ford Excursion :: AC Climate Control System / Air Only Blows Out Of The Defrost Vents

So in the past week only on certain days I have lost my ability to change zones for where my nice refreshing cold air blows on me from. It only blows out of the defrost vents. I here a fluttering noise under the dash when this happens. Also under the hood where all the AC hoses and such are located I feel cold air coming from inside the black box just next to what looks like the blower fan assembly. I don't believe I should be feeling that.

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Ford Super Duty (1999-2016) :: Mirror Defrost Comes On?

Got the new truck on Monday and I am trying to figure it all out

The mirror defrost comes on with the rear window defrost, my question here is does the defrost image on the mirror light up when on?

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Ford Super Duty (1999-2016) :: A/C Blowing Out Defrost Only

I have followed the vacuum lines but don't see any holes or cracked lines. I dont have the ESOF hubs so that is ruled out. Also checked the connector on the vacuum pump to make sure it still had power. Everybody says that when I turn the key to acc I should hear the vacuum pump running. I don't or do I feel it moving. Am I on the right track? I don't want to replace if not bad. Do all vacuum pumps run on keyed power? I honestly don't remember hearing it run before but that doesn't mean anything with my memory.

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Ford Super Duty (1999-2016) :: AC And Heat Only Blows Out The Defrost

I bought a used 99 f250 v10, i went to turn on the a/c today, and it only blows where the defrost is toward the window. it gets cold after awhile, but nothing out the vents, the heat either.

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Ford Super Duty (1999-2016) :: Air Blowing Through Defrost Not Vent?

My husband and I have 3 Excursions, V10, 6.0, 7.3 and I have a 6.0 250 crewcab. 3 of the 4 now blow air or heat from just the defroster unless your going at a slow speed.

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Ford Super Duty (1999-2016) :: F250 - AC Blowing Through Defrost

1999 F250 7.3 4x4 switch on dash with manual hubs. No visual vacuum hoses cracked.

Not sure what this component is but when I wiggle the wire at the orange cap a small motor kicks on.

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Ford Super Duty (1999-2016) :: F250 - A/C Goes From Defrost When Accelerating?

I have a 1999 F 250. When I accelerate my AC from the vents changes to the defrost. Other than that it works great and is ice cold. Why it's doing this.

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Ford Super Duty (1999-2016) :: Climate Settings With OEM Remote Starter?

I recently purchased this remote starter and I installed it and had a local dealer program/cut the key.

I have an XLT without the message center. Do I have the manual temperature setting for when the remote starter is used? It has not worked either way as far as i can tell but it has also been very mild temps in illinois at 55-65 in the morning.

If I do have it, is it a setting i must engage somehow? I looked in the manual but could not seem to find anything.

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