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.
View 2 RepliesFord 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.
Ford Super Duty (1999-2016) :: 2000 - A/C Blowing Through Defrost Vent?
I have a 2000 f250 4x4 7.3 diesel. I had problems with my a/c and controls for sometime now. my a/c was blowing threw the defrost vent. I was told my blend door was bad. I bought a new blend door installed it,still doing the same thing. I was told to check my vacuum lines. I check them, they were bad. I replace my vacuum lines and my vac pump as well. that fixed my problem blowing threw the defrost vent. I can control my air flow from floor,dash vents and defrost vent. the problem I have, I not able to control my temperature when I turn my center from red to blue. It blows hot air and the air that is coming out of the vents isn't very strong at all.
View 1 RepliesFord 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?
View 8 RepliesFord Super Duty (1999-2016) :: 2005 F250 - A/C Blowing Out Of Defrost
The A/C on my 05 F250 6.0 recently would not blow out through the vents. So, I replaced the vacuum pump and the reservoir tank. Once I replaced them the A/C still starts through the defrost vents but, after a minute or so starts to blow through the vents. I also noticed that the vacuum pump never stops running. Is this normal or is there something else I need to look for?
View 5 RepliesFord Super Duty (1999-2016) :: 2005 F250 Blowing AC Through Defrost Only All The Time
My 2005 F-250 6.0 liter Diesel FX4 Lariat is blowing AC through defrost only all the time. I have manual locking hubs and when I engage 4x4 it works perfectly through the ESOF switch. So I am assuming the vacuum pump and lines to the hubs are in good working order but there is possibly a cracked line or fuse blown? I've only had the truck for 2 days and it just happened after purchase. I'm a little unfamiliar with checking vacuum but have done reading and I believe I can do it. I am going to get a manual hand pump and pump to 20lbs and loss shouldn't exceed 1lb per minute. I just need to know which direction to look. Everyone else had their 4x4 not working and I seem to be the only one posting that has ESOF 4x4 capability when the defrost only issue is on.
View 11 RepliesFord 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?
View 3 RepliesFord Super Duty (1999-2016) :: 2005 - Vacuum Pump Out - A/C Being Reverted To Blowing Out The Defrost?
Haven't been on here for a while. My f250 AC vacuum pump is out. This means the AC being reverted to blowing out the defrost. I have found the defrost/vent vacuum solenoid and zip-tied it open for a vents-only experience. I just realized, without the vacuum pump, there is really no way of determining if it is on recirculate or fresh air. I wish for the recirculate so I don't get someone else's or my own exhaust in the cab. Does the system stay on recirculate without vacuum power? if not what actuator must I zip-tie next?
View 1 RepliesFord 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?
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.
View 9 RepliesFord 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.
View 7 RepliesFord 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.
View 5 RepliesFord 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.....
View 1 RepliesFord Super Duty (1999-2016) :: 2001 - Vents Stuck On Defrost
My 01 SD won't blow air anywhere but through the defrost vents.
View 9 RepliesFord 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?
View 7 RepliesFord Super Duty (1999-2016) :: HVAC Goes To Full Defrost And 4WD Does Not Engage
I have a 2005 F350 6.0 with 4 wheel drive.
Late last winter, the 4WD stopped working. I diagnosed it to be a vacuum problem. Like a moron, I purchased a vacuum pump and threw it in there, I just figured that it was bad. It turns out the new pump I bought was bad, but the old pump was fine... Go figure. At any rate, when I switch to 4WD, my HVAC goes to full defrost and the 4WD does not engage.
I think I've narrowed the problem down to the 4WD actuator, since if I hook the vacuum pump output directly to the hubs, the 4WD works fine. If I switch it into 4WD, I can hear the vacuum releasing in the actuator, but it doesn't seem like any vacuum actually gets routed to the hubs. It just opens to atmosphere.
I've noticed that after switching to 4WD, the actuator only "Releases" the vacuum for a few seconds, and then seems to close itself. Is this normal? If I cycle the 4WD selector from 2WD to 4WD repeatedly, it will continue to cycle.
1. Is there any way to service this valve, or should I replace it?
2. Is the valve acting normally?
3. Am I on track with this repair?
Ford Super Duty (1999-2016) :: 2001 F250 - Defrost Stuck / Won't Come Off
My defrost is stuck no matter which way I turn the control it won't come off. It just started doing this today. I think it might be a vacuum leak. When I turn my switch on the pump still clicking whether or not it's pumping.
View 2 RepliesFord Super Duty (1999-2016) :: V10 Switching To Defrost At Times While Towing Usually Above 65 MPH
So, my 06CC V10 likes to switch to the defrost at times while I'm towing, usually above 65mph, would that be a vacuum issue? Also, the truck seems to always have hot air blowing in to the cab somewhere from the fire wall? Lastly it seems to me that the steering wheel has a lot of play in it (left/right) before the wheels actually turn, should I tighten up the steering box, or is this normal.
View 4 RepliesFord Super Duty (1999-2016) :: Heater / Defrost Circuit Does Not Heat Up
My 2006 F-250 SD with 6.0 diesel has some sort of cut-out for the heater circuit, and possibly for the A/C as well. This truck was probably a fleet vehicle for the Houston Port Authority. Didn't really notice this peculiarity until it got really cold outside. If I start the truck up and let it idle for 10-15 minutes the water and transmission temperature get up to the normal operating ranges but the heater/defrost circuit does not heat up. Cannot defrost the windshield.
If I drive to the end of my driveway, about 600 feet, the heater/defroster starts putting out good heat. When driving, if I have to stop at a stoplight, or any other pause, with the truck still in gear, the heater output starts to cool down. I suspect that this feature was incorporated in the circuitry at the factory to prevent the driver from sitting still to keep warm. The truck MUST BE MOVING to allow heat or defrost to operate. The blower motor operates and it doesn't matter if the truck is in gear or not.