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 Replies2006 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 Replies2006 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?
View 1 RepliesI 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.
View 12 RepliesOk, I know the problem is the blend door, but not which one. I hear a clicking constantly whether the truck is started or not near the center of the passenger side. I can adjust the temp to be 65-70 on the driver side and be fine, but the passenger side is hot. I've looked for TSB's for 2010 and have come up empty. I bought the truck used, and bought an extended warranty, but not sure it will cover this repair.
Is there a TSB for this? If you had this done at the dealer, how much did it cost to repair? Would you attempt the repair yourself? I've taken the dash apart to find the problem, but then determined it might be too involved for me to do and I wasn't comfortable disconnecting the air bags.....
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.
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 RepliesThe 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 RepliesMy 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 RepliesMy 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 RepliesMy 2005 F250 just had the cab off in December for head studs and gaskets. Its a Crew Cab short bed FX4 so it has ESOF. When I engage 4x4 the blower will switch from blowing air out of the vents to blowing air out of the windshield defrost. Is a vacuum line plugged in wrong somewhere, or is one cracked? Trying to figure this out, its rather annoying
View 2 RepliesMy truck at idle sounds like it has aftermarket cams and the exhaust coming out of the tail pipe smells really rich. when driving down the road my heater controls default to defrost. Also when I fill up with gas it takes forever to get it to fill all the way. I am lost on where to begin with the problem [ I did check the tank vent hose and their is no blockage] Possible vacuum issue?
View 10 RepliesMy 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?
View 2 RepliesIt'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.
View 10 Replies2006 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.
View 1 RepliesI bought this truck used and the guy said it needed a new blend door actuator so I bought a new one off eBay I installed it, plugged the wire back in and turned on the key and it started smoking, it burned up. The wires have been cut before and have been butt connected back together. I notified the place I bought it from and they sent me back a new one but I'm scared it will do it again.
View 3 RepliesMy ex-has the electronic temp control. I've noticed there is very little difference from full hot to turned down less than 1/2 way.
(I'll convert to Fahrenheit here) Example - lowest temp setting is 60. If I am on heat, turning it from 60 to 66, gives me almost full hot. A slight difference is felt turning it to 68 and 70, but basically, 70 is full HOT. Continuing to turn it up to 88 makes zero difference.
I figured the blend door actuator might be toast, but it is in fact moving. I pulled the heater core cover off and here is what I noticed.
At 60, the blend door is fully open (correct, pulling cold air from outside) turning it to 66 the blend door almost fully closes. then the last little bit gets closed when going from 66-70. Anything hotter than 70 is of no use because mechanically it IS on full hot at 70. So basically I get full cold, or full hot, nothing in the middle. I pulled blend door actuator out, cleaned all the built-up crud around the shaft, took it apart and cleaned it, (no broken gears) no effect.
sitting at a redlight with radio off, sounds like heater door or something under the dash is moving. Thing is, all the controls for heater and a/c were off.
2009 f250 5.4.
2008 F-250 Lariat with EATC climate controls... My truck suffers from the knocking/buzzing/clicking that is apparently associated with faulty blend door actuators. I have been putting off getting them replaced because of the hefty price tag associated with tearing apart the dash and whatnot that is required to get to the lower actuator that sits right on the transmission tunnel. Anyhow, today was the first day I really needed A/C and it just wasn't cold. Cool yes, but not cold. Is there a way to determine if this is a function of the blend door(s) not doing their thing versus the system A/C needing a repair/recharge? I don't have access to any A/C equipment myself, how to determine if it's a blend door issue?
View 3 Replies2008 F-350 Lariat, 6.4L, dual climate control. The passenger side blows ONLY hot air whereas driver side seems to blow whatever is called for. Is it right to assume this is the passenger side actuator, and this actuator is the "easy" one to replace (i.e. not pulling dash)? I read in another thread that there might be a question on determining the correct one to replace, so therefore I ask for clarification. How to verify if my assumption wrong?
View 4 RepliesLooking for a tutorial on how to add the fog lamps to an 06 f250 superduty? I have an xlt with the fog lamp switch just need to install the after market fog lamps they are leds.
View 4 Replies