1994 f150. When i use the max a/c setting, sometimes after a few minutes I hear a little thud and then all the air starts coming out of the defrost vents. This doesn't happen when using the regular a/c setting.
View 2 RepliesMy wife's '02 Explorer has developed an issue with the heat/AC. As far as I can tell, the heat is hot when it's supposed to be hot, and the AC is cold when it's supposed to be cold. But, the problem is that everything only blows out through the defrost vents, no matter what setting it is on.
I know there are other threads on this type of subject, and I have read a lot of them. I thought I had identified that actuator gizmo as the culprit, but the more I read, it didn't seem like the symptoms for that issue are exactly like mine. I want to try and fix it myself, and I'd love to take the time to read everything on the subject, but warmer weather is here and my wife wants it fixed yesterday!
This problem reminds me of the time the vacuum pump went out on my F-350 and the defrost vents were all that would work. I wish this problem would be as easy to fix as that was.
I have a 2008 Ranger sport. When set on max a/c can only feel a small amount of air coming out of the vents. Compressor gets cold an condensates. Would this be a problem with the actuator not opening the damper all the way?
View 2 RepliesI have a 2002 SuperCrew - I've recharged the coolant - I can fill the air coming from the top defrost vents.
No matter what button I press on the air controls and can't get the air to switch to the vents. What the problem could be?
I just picked up a 78 F150 Ranger XLT with a 351M in it this past friday. I am absolutely in LOVE with her. She is a great solid truck. One issue I am having though is that she blows hot air out the vents over the hump but nothing is coming out the top of the dash. I am guessing that i will have to take the dash off and clean out the box check the door etc. What did you do to rectify?
View 3 RepliesCar do this? Seems odd to me. Iss there a way to disable via VCDS?
View 22 RepliesI recently found out that my check valve needs replacing for my a/c vacuum. The problem came from when I turn my AC on, the panel vents do not work. Instead, the Defrost vents push the AC air out. How to replace the vacuum check valve? I would like to avoid the high cost of dealership prices.
View 14 RepliesOn my 2000 f250 diesel, it seems like the ac blows barely on the max ac setting. I swear its gotten worse over the years. Is it the fan? something else?
View 3 RepliesI have a Corolla XLi 2010 (1.6) which from the moment I bought the car it had this problem with the AC (I bought it used and was informed about the issue so I got it with a good price).
The AC sometimes starts and sometimes it doesn't I thought it was just lacking of freon gas but wasn't that, and except this problem the second one is that sometimes it smells like mold coming from the AC. May be are related or maybe not, but I really want to resolve these issues asap.
I'm adding some more info, when the AC isn't working I don't hear the AC sound, and of course when it's working I hear the classic AC sound, and another "thingy" is that when I push the car around 120km/h the AC keeps working more , and also some times if isn't working and I hit the turbo increasing the RPM and making the car scream like a sport car , suddenly the AC starts (but I don't do thsi all the time) and it's just my impression of daily-use.
I have a Gen II problem with my air conditioning. The air conditioning works; however, the air is stuck blowing in the defrost setting. I think there is some problem with the Air Mix Servo. In my non Prius cars they called the part a blend door actuator. Long story short, the air will not move to the front vents or anywhere else. That said, I can't hear the servo moving at all.
View 1 RepliesMy AC is not working on any setting but defrost. Warm air blows out on the reg AC settings, but if I turn it to defrost, chilly air comes out.
View 2 RepliesI have noticed if I turn on the AC and set it to any front defrost setting (either full front defrost or mix front defrost and lower vents) and turn up the heat that when I turn it on the next day there is a horrible smell. If I run the AC and turn the temperature up there is no smell so long as I don't use any setting using the front defrost. The smell is bad enough that I have to open the windows to air out the car. After a few minutes the smell goes away.
The car is an '06 XL. I noticed it intermittently when I first got it two years ago, but this winter the smell happens every time I use the AC on any front defrost mode. My guess is the heating element under the front windshield. If I turn on the heat without the AC on any front defrost setting I do not have the problem.
I thought I wouldn't have need of the defrost for several months yet, but today we had unusually cold rain and my windows soon fogged up. The fan (not a/c) was already running at a very low setting (one or two clicks only) when I depressed the defrost button. Roughly 15 seconds later, it was like a hurricane in the cabin! The fan moved to the highest setting all by itself. This did clear the windshield in seconds, but it was a bit disconcerting. This phenomenon repeated itself all three times that I engaged the defrost button. Is the defrost supposed to do that? I swear, the sudden change startled me so much, I hit my head on the ceiling of the cabin...
View 3 RepliesI have a 2001 E150 and when i turn the AC/heat/air on it will only come out the defrost vents. Whenever i flip the switch left or right nothing comes out, but when i put it on defrost it works... but only through the defrost vents....
View 5 RepliesMy 02 V-10 Ex seems to be blowing Air from the front vents up to the Defrost unless it go through a series of events-- Hit Auto then forward Air then the fan has to be a 4 only. It will blow forward vents then go back and forth from theirr to the defrost. Also the Temp seems to be much hotter then it should.
Took a interstate trip this weekend though and it seems to blow much colder and do a little bit better staying in the front vents however still goes back and forth. Im in FL and its HOT!!!! The only thing I know is that its a vacuum system.. and that again its HOT in the truck as a daily driver.
On my new to me 02 Mountaineer, the a/c and heater air on my climate control system is acting up. Everything is working as it should, except that when you direct air to the floor, the air comes out the defrost vents. I took the glove box out and when looking from the passenger floor towards the center, I can see 2 actuators that seem to be working. I was wondering if there were more than 2 of them, maybe one on the drivers side that I am not seeing, Didn't know that if maybe when one closed that another one would open elsewhere. As I said everything else is working as it should. Also the recirculation door is working as it should. Something else that I noticed is that the top port(#6) on the row of the vacuum hose plug does not have a line on it. Where I can get a diagram or picture of the hvac system.
View 5 RepliesI have a 2002 Ex with the 7.3. Every time I put it into 4x4, the A/C automatically switches to the windshield defrost vents. After a couple minutes it switches back the the A/C vents. I'm assuming that isn't normal.
View 12 RepliesI have a 2010 f-150. Started having issues with the blend door actuator located behind the radio so replaced that a couple months ago and fixed issue. Now the a/c will only blow through the defrost and floor vents. I replaced the lower blend door actuator thinking that might be the culprit, but did not fix the problem. What the solution might be.
View 3 RepliesWhen the blower is on, it automatically switches from vents to defrost vents on its on. Does it about every 4 minutes.... like it's haunted. Curious if this is something i can tackle or do i need to take it in...
View 7 RepliesMy A/C is blowing cold but only thru the defrost vents. First it was blowing normally from the dash but during acceleration or under load, the a/c would randomly blow from any vent, from the floor, dash, defrost. Now that stopped and it only blows from the defrost vents above the dash-board.
1997 F-150 XLT, 4.2 Liter, V6, manual transmission.
My nav. when I put the air cond on auto and lower the temp so the air comes on, it blows out the vents on the front of the dash like it should and is cold. Then after about 30 seconds give or take, I hear a door deep inside the dash shut, or open, then the cold air only comes out the dash vents that are the defrosters for the windshield.
Then I can make it go back to the front vents again by pushing the button on the heater control to make the cold air come out the front vents again, but then it does the same thing again. Whats going to need to be replaced/repaired?